Credits : Knowtechie


Whether you are designing a website or application from the ground up or simply need to encode a new feature into your existing website or application, hiring a talented freelance PHP developer is an excellent option to consider.

Of course, in order to ensure that the project is successful – no matter how big or small it might be – it’s important that you take your time and choose the right PHP developer to hire. Below are a few qualities to look for when searching for the perfect PHP developer for your project.

The Three Tenants of a Professional PHP Developer

There are three basic qualifications that you should look for when first analyzing the prospects of a PHP developer – education, training, and experience. Professional PHP developers will almost always have an academic background in computer science before moving on to additional training specific to PHP then on to real-world experience coding websites and applications in PHP. Ideally, you’ll want to hire a PHP developer that has all three of these qualifications.

Proficiency in Other Coding Languages

If you want to be able to count on a single programmer to handle an entire web or application development project, chances are they will need to be proficient in more programming languages than just PHP. Other programming languages that are used in web development include Javascript, Semantic HTML Coding, XML, and various other coding languages. If the PHP developer you are considering does not have any other coding languages other than PHP listed on their profile, ask them about their experience with other coding languages in your communication with them. If you are able to work with someone that has an understanding of a few key programming languages outside of PHP chances are your project will go much smoother.

Great Communication and Interpersonal Skills

In many cases, being a great at writing code is not going to be enough for a PHP developer to guarantee a successful project. To compliment their coding skills, the best PHP developers rely on great communication and interpersonal skills as well.

These so-called “soft skills” help PHP developers better understand the goals and requirements of your project before they ever get started. In addition to making it easier to communicate your vision for your project, working with a PHP developer who has adept communication and interpersonal skills will also make the entire project more enjoyable, less time-consuming, and much easier to navigate from start to finish.


If you are able to find a talented and professional freelance PHP developer to work alongside you as you build or update your website or application, you’ll have a valuable member of your team that can help you create tools, features, and user interfaces that will set your business apart from the competition.

By taking your time when choosing a PHP developer and looking for someone who is experienced, has a broad programming knowledge base, and who has great communication skills, you’ll be able to increase the chances that your next PHP development project is 100% successful.

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Credits : Techworld


Cloud-native computing takes advantage of many modern techniques, including PaaS, multicloud, microservices, agile methodology, containers, CI/CD, and devops.


The term “cloud-native” gets thrown around a lot, especially by cloud providers. Not only that, but it even has its own foundation: the Cloud Native Computing Foundation (CNCF), launched in 2015 by the Linux Foundation.

‘Cloud-native’ defined

In general usage, “cloud-native” is an approach to building and running applications that exploits the advantages of the cloud computing delivery model. “Cloud-native” is about howapplications are created and deployed, not where. It implies that the apps live in the public cloud, as opposed to an on-premises datacenter.

The CNCF defines “cloud-native” a little more narrowly, to mean using open source software stack to be containerized, where each part of the app is packaged in its own container, dynamically orchestrated so each part is actively scheduled and managed to optimize resource utilization, and microservices-oriented to increase the overall agility and maintainability of applications.

“A cloud native app is architected specifically to run in the elastic and distributed nature required by modern cloud computing platforms,” says Mike Kavis, a managing director with consulting firm Deloitte. “These apps are loosely coupled, meaning the code is not hard-wired to any of the infrastructure components, so that the app can scale up and down on demand and embrace the concepts of immutable infrastructure. Typically, these architectures are built using microservices, but that is not a mandatory requirement.”

For cloud-native applications, the big difference then is really how the application is built, delivered, and operated, says Andi Mann, chief technology advocate at Splunk, a cloud services provider. “Taking advantage of cloud services means using agile and scalable components like containers to deliver discrete and reusable features that integrate in well-described ways, even across technology boundaries like multicloud, which allows delivery teams to rapidly iterate using repeatable automation and orchestration.”

Cloud-native app development typically includes devops, agile methodology, microservices, cloud platforms, containers like Kubernetes and Docker, and continuous delivery—in short, every new and modern method of application deployment.

Because of this, you really want to have a platform-as-a-service (PaaS) model. A PaaS is not required, but it makes things a lot easier. The vast majority of cloud customers start out with infrastructure-as-a-service (IaaS), which helps abstract their apps from the underlying hardware. But PaaS adds an extra layer to abstract the underlying OS, so you can focus entirely on the business logic of your app and not worry about making OS calls.

Differences between cloud-native and on-premises applications

Cloud-native application development requires a very different architecture than the traditional enterprise applications.


On-premises apps written to run on company servers tend to be written in traditional languages, like C/C++, C# or another Visual Studio language if deployed on a Windows Server platform, and enterprise Java. And if it’s on a mainframe, it’s likely in Cobol.

Cloud-native apps are more likely to be written in a web-centric language, which means HTML, CSS, Java, JavaScript, .Net, Go, Node.js, PHP, Python, and Ruby.


Cloud-native apps are always current and up to date. Cloud-native apps are always available.

On-premises apps need updates and usually are delivered on a subscription basis by the vendor, and require downtime while the update is installed.


Cloud-native apps take advantage of the elasticity of the cloud by using increased resources during a use spike. If your cloud-based e-commerce app experiences a spike in use, you can have it set to use extra compute resources until the spike subsides and then turn off those resources. A cloud-native app can adjust to the increased resources and scale as needed.

An on-premises app can’t scale dynamically.


A cloud-native app has no problem working in a virtualized space and sharing resources with other apps.

Many on-premises apps either don’t work well in a virtual environment or don’t work at all and require a nonvirtualized space.

Connected resources

An on-premises app is fairly rigid in its connections to the network resources, such as networks, security, permissions, and storage. Many of these resources need to be hard-coded, and they break if anything is moved or changed.

“Network and storage are completely different in the cloud. When you hear the term ‘re-platforming,’ that is typically the work to accommodate the changes in networking, storage, and even database technologies to allow the app to run in the cloud,” says Deloitte’s Kavis.

Down time

There is greater redundancy in the cloud than there is on-premises, so if a cloud provider suffers an outage, another region can pick up the slack.

On-premises apps might have failover ready, but there’s a good chance that if the server goes down, the app goes down with it.


So much of the cloud is automated, and that includes app management. “The benefits of cloud-native delivery, especially speed and agility, significantly rely on a substrate of reliable, proven, and audited known-good processes that are executed repeatedly as needed by automation and orchestration tools rather than through manual intervention,” says Splunk’s Mann. Engineers should look to automate virtually anything they do more than once to enable repeatability, self-service, agility, scalability, and audit and control.

On-premises apps have to be managed manually.

Modular design

On-premises apps tend to be monolithic in design. They offload some work to libraries, to be sure, but in the end it’s one big app with a whole lot of subroutines. Cloud-native apps are much more modular, with many functions broken down into microservices. This allows them to be shut off when not needed and for updates to be rolled out to that one module, rather than the whole app.


The loosely coupled nature of the cloud means apps are not tied to infrastructure, which means they are stateless. A cloud native app stores its state in a database or some other external entity so instances can come and go and the app can still track where in the unit of work the application is. “This is the essence of loosely coupled. Not being tied to infrastructure allows and app to run in a highly distributed manner and still maintain its state independent of the elastic nature of the underlying infrastructure,” Kavis says.

Most on-premises apps are stateful, meaning they store the state of the app on the infrastructure the code runs on. The app can be broken when adding server resources because of this.

The challenges of cloud-native computing

One of the big mistakes customers make is trying to lift and shift their old on-premises apps to the cloud, Mann says. “Attempting to take existing applications—especially monolithic legacy applications—and move them onto a cloud infrastructure will not take advantage of essential cloud-native features.”

Instead, you should look to do new things in new ways, either by putting new cloud-native applications into new cloud infrastructure or by breaking up existing monoliths to refactor them using cloud-native principles from the ground up.

You also need to dispense with your old developer methods. The waterfall model certainly won’t do, and even agile development might not be enough. So, you must adopt new cloud-native approaches like minimum viable product (MVP) development, multivariate testing, rapid iteration, and working closely across organizational boundaries in a devops model.

There are many aspects to being cloud-native, including infrastructure services, automation/orchestration, virtualization and containerization, microservices architecture, and observability. All of these mean a new way of doing things, which means breaking old habits as you learn the new ways. So do it at a measured pace.

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If Java is unfamiliar territory for you or you are migrating from another language to Java, this article should help you understand what you need and what you don’t.

I suppose most of you, in the role of explorers and adventure seekers, have come across the following problem – you’ve set a target and you are willing to try out a new technology, in an unknown field, to reach “unexplored” grounds, with the idea of expanding your horizons.

The problem is that, even before you start, an important question arises:

  • How do I know where to start or where I’m going in the infinite sea of information and how can I distinguish between what I need and what I don’t need?

Quite simple. You need a compass.

But first, a few words about me. My name is Samuil and I am a Java beginner. I’m currently working at Dreamix, a custom software company, where we develop software using Java with Spring Boot and Angular. Prior to starting this job, I went through intensive training at a popular software academy, which I am extremely grateful to for the serious preparation. I became part of the Dreamix team three months ago when I started using Java in the real world. I would like to share with you my personal experience regarding the process of adaptation, what to do and how to accomplish your goals in this direction. I believe the information will be useful to you!

No programming experience

Nowadays, finding information seems very easy. I believe most of you have already searched for something along the lines of: ‘How to teach yourself to code’, ‘Learn to code’, ‘How to get started writing code’ and so on. In front of you appear thousands of articles, containing all kinds of suggestions and tips. I went through the same thing and I know how confusing it can be.

Even though much of the information is useful, you can easily get lost in the labyrinth of data.

Software academy

I am currently finishing my Masters in ‘Electrical Engineering – Informatics and Communication’ in French. Nearly a year and a half ago, while longing for practical experience, and realizing that university in and of itself could not provide it, I decided to try something new. As an experiment, I started attending, as already mentioned, a software academy, and it completely changed my understanding of programming. There, they prepared me for real life, where the work contains an array of problems and requirements.

What I enjoyed most of my time at the academy is the atmosphere. Young, talented and motivated people, who are not in a hurry to leave the lectures, do not run away from innovation, keep pace with new technologies. People who want to share their experience with anyone who has the thirst to learn. Being a part of this is surely going to motivate you.

The third very valuable quality of this type of training is that you are immersed in an environment of people of all ages, occupations, and nationalities, attending university, working, taking care of their families, all willing to dedicate time to attending lectures, studying and expanding their technical horizons. Time does not matter to the lecturers, the only thing they care about is whether the shared knowledge has reached you and has been understood. For them, the emerging questions from students are joy and not a nuisance.

In my view, it is useful at first to be surrounded by people with more knowledge and experience, to guide you through the sea of information, in a way that only the most important and meaningful things reach you. Then, of course, in your quest to get deeper into things, you will search and build up your knowledge.

To me, finding yourself in this environment, where you are thrown directly into the deep and everyone around you goes forward with fast pace and high goals, where in order to endure the intense tempo and constant inflow of new information you need devotion, perseverance and above all desire to keep up, means that if you manage to do so, you can not fail to achieve a good result. This is also a great way to find out if programming is for you, whether you’re ready to do it eight hours a day, five days a week, despite all the difficulties you will encounter.

The academy is … how to put it, a test projection of reality. My advice is simple. If you can locate a software academy where you live and if you have the opportunity to sign up, do not be afraid to do so. On the contrary, dive right in!

Extra resources

а) Java: A Beginner’s Guide, Seventh Edition 7th Edition – it starts with the basics – how to create, compile, and run a Java program, then moves on to the keywords, syntax, and constructs that form the core of the Java language. This book spans to some of Java’s more advanced features like multithreaded programming, generics, lambda expressions, Swing, and JavaFX. In it, you can also find feature details on Java SE 9’s innovative module system, and an introduction to JShell, Java’s new interactive programming tool.

b) Head First Java, 2nd Edition – offers a highly interactive learning experience that lets new programmers pick up the fundamentals of the Java language quickly. The book is distinguishable from the other books of this type by the mind-stretching exercises, memorable analogies, humorous pictures, and casual language.

 c) Java Precisely, Third Edition – offers many examples and some essential libraries. It is both for beginners and more experienced Java programmers.

 d) Udemy courses:

  • Java Tutorial for Complete Beginners by John Purcell
  • Complete Java Masterclass by Tim Buchalka, Tim Buchalka’s Learn Programming Academy, Goran Lochert

e) “Stack Overflow”  every programmer’s favorite website – also the largest, most trusted online community for developers to learn, share their programming knowledge, and build their careers.

 f) “Codingame” – Coding games are similar to online tutorials. In fact, the two are best used together for a mix of theory, practice and fun.

Some experience in programming

For people who feel comfortable with the basic principles and concepts of programming and would like to expand their knowledge, here are some additional resources that helped me.

Currently, one of my goals is to receive the Oracle Certified Associate Java (OCA) certificate. My trusted sidekick in this initiative is the OCA: Oracle

Certified Associate Java SE 8 Programmer I Study Guide: Exam 1Z0-808 1st EditionWhen I first opened it, I noticed that it is written in more detail and is very comprehensible, covering some of the most basic and common features of the language, and other, less rare, but tremendously valuable to those who want to improve the quality of their code. At the same time, I also decided to turn to resources that would improve my thinking and would give me different ways to solve a problem. Effective Java (3rd Edition) is the resource for this.

The book is a bit difficult to read and it takes time. I read it slowly, continuing with a new dose of information, only when I am sure I fully understand the previous paragraph. You will encounter a number of ‘non-standard’ techniques that are beyond the scope of the usual programmer, but once you understand the idea behind them, you’ll want to put them to use as soon as possible.

What I like about this book is the fact that everything is thoroughly explained. It makes you ask yourself whyyou would prefer to make one decision over another when encountering a problem. What the advantages and disadvantages of your choice are, and what other options you have. It gives you great tips and makes you think, it encourages you to add new knowledge to your existing “toolkit” and before you know it, you start using it.


  • Here are some very detailed Java specific reference books that I’ve heard great things about, and are on my “must read” list

Java: The Complete Reference, Ninth Edition. This Oracle Press resource explains in detail how to develop, compile, debug, and run Java programs. JavaBeans, servlets, applets, and Swing are examined and real-world examples demonstrate Java in action. The new Java SE 8 features such as lambda expressions, the stream library, and the default interface method are also discussed in detail. In addition, it offers a solid introduction to JavaFX.

Core Java Volume I–Fundamentals (11th Edition) explains the most important language and library features and shows how to build real-world applications with thoroughly tested examples. The new features introduced with Java SE 9 are all covered with depth and completion. This book encourages readers to dive deeper into the most critical features of the language and core libraries.

Core Java Volume II– Advanced Features (11th Edition). As you can understand from the name of the book, it takes the reader to the next level by covering advanced user-interface programming and the enterprise features of the Java SE 9 platform.


  • Here are some “must read” books that are not Java specific, but  will greatly improve your skills as a software engineer:
  • The Pragmatic Programmer: From Journeyman to Master 1st Edition
  • Clean Code: A Handbook of Agile Software Craftsmanship 1st Edition
  • The Clean Coder: A Code of Conduct for Professional Programmers
  • Design Patterns: Elements of Reusable Object-Oriented Software 1st Edition
  • The Art of Unit Testing, Second Edition

I hope that as a Java beginner and a person who is relatively new to programming, I’ve been able to help you with an idea, or by providing a good reading list.

In the end, you know best what would’s best for you and your goals. I wish you nothing but success in this adventure and advise you not to be afraid to dive deep into the Java world!

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credits : Digitaljournal


The research provide Industry Overview, Market history, Market competition, Development and Trades and Trade policies. The research provide investment analysis opportunities market shares profiling top key players : Marin Software, Kenshoo, Sizmek, 4C, DoubleClick Digital Marketing, AdRoll, MediaMath TerminalOne, dataxu, Choozle, IgnitionOne, Criteo

This press release was orginally distributed by SBWire

Houston, TX — (SBWIRE) — 06/13/2018 — The competitive landscape of the Advertiser Campaign Market is explained in detail in the report. What is the key strategy the companies are focusing on? Is it innovation, cost, emerging markets focus, or something else? The key strategy of the most established companies is included in this report. Moreover, the report also offers advice to the top companies and new entrants on how they can tap the best opportunity in the market with which strategy.


This report studies the global Advertiser Campaign Management Software market, analyzes and researches the Advertiser Campaign Management Software development status and forecast in United States, EU, Japan, China, India and Southeast Asia. This report focuses on the top players in global market.

THE MAJOR PLAYERS REPORTED IN THE MARKET INCLUDE: Marin Software, Kenshoo, Sizmek, 4C, DoubleClick Digital Marketing, AdRoll, MediaMath TerminalOne, dataxu, Choozle, IgnitionOne, Criteo

Market segment by Regions/Countries, this report covers North America, China, Japan, Southeast Asia, India

Market segment by Type, the product can be split into Cross-Channel Advertising, Demand Side Platform (DSP), Display Advertising, Mobile Advertising, Other

Market segment by Application, Advertiser Campaign Management Software can be split into
Small Business, Medium Business, Large Enterprises


This research, highlighting the current situation of the global Advertiser Campaign market, focuses on answering some of the important questions faced by stakeholders. By providing answers to all of these questions related to the key drivers and dominant companies, the report’s authors also focus on different factors, which would create new growth opportunities in the global Advertiser Campaign market.

Prepared by an expert team, the report on the Global Advertiser Campaign Market highlights recent developments, key trends, and new project developments in the market. As leading companies take efforts to maintain their dominance in the global Advertiser Campaign market, the right way to do so is by adopting new technologies and strategies.

The Advertiser Campaign Market has many different types of applications in the industrial sector such as aircraft engines and wind turbines. In addition, the global market can also be employed for applications such as diagnostics, smart cities, and monitoring.


The growth of the industrial sector is one of the main driving factors that is responsible for the growth and development of the Advertiser Campaign market worldwide. The modern Internet of Things is following the surge of digitalization of innovation that builds up a scaffold amongst the physical and advanced world. The model follows the growth status of the physical product growth cycle and enables the client to check the performance and outcome of the process. Dealing with all the outline records for the market among suppliers and distributors is one of the significant restrictions confronted by the market.

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Credits : Techrepublic


If you manage a database server, you are probably always in search of a tool to make that process a bit easier. If your database of choice is MySQL, you have a number of options. You can always secure shell into that server and manage the databases from the command line. You can also install a tool like phpMyAdmin or adminer to take care of everything via a web-based interface. But what if you’d prefer to use a desktop client? Where do you turn? One possible option is DBeaver.

DBeaver is a free, universal SQL client that can connect to numerous types of databases—one of which is MySQL. I want to show you how to install and use DBeaver to connect to your remote MySQL server. DBeaver is available for Windows, macOS, and Linux. I’ll be demonstrating on a Ubuntu 17.10 desktop connecting to a Ubuntu Server 16.04.

Installing DBeaver

The installation of DBeaver is fairly straightforward, with one hitch. Download the necessary .deb file from the downloads page and save it to your ~/Downloads directory. Open up a terminal window and change into that directory with the command cd ~/Downloads. Install the downloaded file with the command:

sudo dpkg -i dbeaver*.deb

That installation will error out, due to dependency issues. To resolve this, issue the command:

sudo apt install -f

Once the above command completes, everything will be in place to run DBeaver. Open up your desktop menu and search for the DBeaver software. Click on that entry to run the application.

Connecting DBeaver to your server

The first thing you must do is have your MySQL configured to allow remote connections. I’ve already covered this process in my article “How to set up MySQL for remote access on Ubuntu Server 16.04.” Make sure you have that working before continuing on. Otherwise the connection will fail.

Within the DBeaver main window click the New Connection Wizard button (below File—Figure A).

Figure A

Figure A

The DBeaver main window.

In the resulting window select MySQL from the list and click Next. Enter the necessary information for your MySQL database server (Figure B).

Figure B

Figure B

Creating a new remote connection.

Once you’ve filled out the necessary information, click the Test Connection button. If all goes as planned, you should see a popup informing you the connection was successful (Figure C).

Figure C

Figure C

A successful connection.

Click Next and then (in the resulting window) set up an optional SSH tunnel. This would be a good idea if you’re connecting to your MySQL from outside of your LAN. If you’re within your LAN, chances are you won’t need this option. If you don’t want to bother with the SSH tunnel, click Next. The final window (Figure D), allows you to check the settings and configure a few more details for the connection.

Figure D

Figure D

Our final window.

Once you’re satisfied with the connection setup, click Finish then when prompted click Yes to create a sample database. Creating this sample database allows you to explore the DBeaver tool without the danger of wreaking havoc on your production databases. Once you’re comfortable with the DBeaver interface (Figure E), you can then start working on your actual databases.

Figure E

Figure E

DBeaver is ready to help you work with your databases.

A good tool to empower your MySQL database administration

And that’s all there is to connecting DBeaver to a remote MySQL database. If you’ve been looking for a powerful tool to make your MySQL administration a bit easier DBeaver goes a very long way to making that happen. Give this tool a try and see if it doesn’t become your go-to database admin app.

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Credits : Gsmarena


Some users are already getting the new software version for the Honor 10 with build number COL-L29 that adds some useful and maybe not as much, new features.

The first one you will notice is the so-called Party Mode app that connects several devices via NFC to form a surround sound experience by playing one song simultaneously. The Honor View 10 also got the app, but we can’t confirm if both devices can be paired via the Party Mode app. We wonder, however, how many users actually use it, if it’s restricted to Honor devices only.

Anyway, let’s start with the helpful improvements. The default camera app got a new AI functionality – once you start taking photos, a small text message shows what kind of effect the AI is going to use, given the scenery.

The fingerprint scanner gets a little tweak as well. Now the phone detects how well you’ve recorded your fingerprint and whether it will be recognized at a certain angle. A message will pop up and advice you to delete and replace your saved finger.

Other improvements include a new theme, live wallpaper, power optimizations and May security patch.

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Credits : Exclusivereportage


Global Complaint Management Software Market has been broadly presented in this report, taking into consideration its key aspects such as growth prospects, restraining factors, competitive landscape, and future opportunities. Readers have been comprehensively updated with vital statistics about the current and future share, verifiable projections about top segments and sub-segments, CAGR, and regional shares of the market. The authors of the report have applied qualitative as well as quantitative analysis to deeply evaluate the market.

The report supplies an extensive exploration of essential market dynamics and the recent trends together with pertinent market segments and factors influencing the expansion of the Complaint Management Software market. The Complaint Management Software report spotlights on the regional market, the major market players, and also the numerous market segments with an extensive assessment of several divisions along with their applications.

An exhaustive assessment of the value chain of the global Complaint Management Software market has included a deep insight about prominent end users, distributors, technological solutions, raw material suppliers, and manufacturers. The report is anticipated to be a useful guideline to apprehend the current and historical performance of the market in terms of both value and volume that could direct players to make informed decisions in their individual businesses.

What our report offers –

  • The complete Complaint Management Software market size and share analysis is done
  • The prominent industry players in the market are included
  • The opportunities for the new entrants in the market are included
  • Based on the forecast trends the market estimations are made for the strategic recommendations in the business segments
  • Detailed company profiles are included.
  • Many trends such as globalization, technology advancement, over-capacity in developed markets, market fragmentation regulation & environmental concerns, and product proliferation are covered in this report. The performance and characteristic of the global Complaint Management Software market are evaluated based on the quantitative and qualitative method to provide a clear picture of the current and future forecast trend.
  • The study objectives of this report are:

     To study and forecast the market size of Complaint Management Software in global market.

    To analyze the global key players, SWOT analysis, value and global market share for top players.

    To define, describe and forecast the market by type, end use and region.

    To analyze and compare the market status and forecast between China and major regions, namely, United States, Europe, China, Japan, Southeast Asia, India and Rest of World.

    To analyze the global key regions market potential and advantage, opportunity and challenge, restraints and risks.

    To identify significant trends and factors driving or inhibiting the market growth.

    To analyze the opportunities in the market for stakeholders by identifying the high growth segments.

    To strategically analyze each submarket with respect to individual growth trend and their contribution to the market

    To analyze competitive developments such as expansions, agreements, new product launches, and acquisitions in the market

    To strategically profile the key players and comprehensively analyze their growth strategies.

    Table of Contents:

    Complaint Management Software Market Research Report 2017

    Chapter 1: Complaint Management Software Market Overview

    Chapter 2: Complaint Management Software Market Economic Impact on Industry

    Chapter 3: Complaint Management Software Market Competition by Manufacturers

    Chapter 4: Complaint Management Software Market Production, Revenue (Value) by Region

    Chapter 5: Complaint Management Software Market Supply (Production), Consumption, Export, Import by Regions

    Chapter 6: Complaint Management Software Market Production, Revenue (Value), Price Trend by Type

    Chapter 7: Complaint Management Software Market Analysis by Application

    Chapter 8: Manufacturing Cost Analysis

    Chapter 9: Industrial Chain, Sourcing Strategy and Downstream Buyers

    Chapter 10: Marketing Strategy Analysis, Distributors/Traders

    Chapter 11: Market Effect Factors Analysis

    Chapter 12: Complaint Management Software Market Forecast

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Which programming language should you learn if you want a job at Google, Amazon, Facebook or any big software company? originally appeared on Quora: the place to gain and share knowledge, empowering people to learn from others and better understand the world.

Answer by John L. Miller, Software Engineer/Architect@ Microsoft, Amazon, Google, PhD, on Quora:

Getting hired by one of the big software companies requires two things:

    1. Getting chosen for an interview.
  1. Passing the interview.

In the ideal case, you know the same programming language as the people who will evaluate you technically. Your experience is compelling enough that you are chosen to be interviewed. Your approach to problem solving and coding is crystal clear, and since the interview is fluent in the programming language you use, they can admire your handiwork and be duly impressed.

In a more typical case, the interviewer knows several programming languages and is best at one. The candidate knows at least one language the interviewer knows.

For example, I might be best at C++, but I can still interview someone who is best at Java or C#. I’d have a much harder time interviewing someone who insists on using PERL. It’d be impossible for me to interview someone who used Haskell or Smalltalk: I wouldn’t be able to evaluate their approach, the elegance of what they write, and so on.

The best programming language to get a job at any big software company will depend upon the group you’re interviewing with. At Amazon some groups use C++, some use java, some use PHP or Ruby, and so on. It won’t be the same language for all of Amazon, but you are probably safe using Java for services and devices, and PHP/javascript for front end stuff.

Knowing a similar language is good enough. Not being able to communicate with the interviewer in a shared style of language is a fail.

In general, you’re safe knowing Java, C#, or C++ for any non-front-end position at a big software company.

A final caution: don’t waste time learning the language that the company is using for the group you want to go to just for that purpose: you won’t be good enough at it, and will hurt rather than help your chances. Instead, continue growing in the language you’re best with, and show what a great coder and problem solver you are in the interview.

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USD/PHP (PHP=X) Taking Profits, Waiting for Re-Entry

Overall, the bias in prices is: Sideways.

By the way, prices are vulnerable to a correction towards 51.98.

The projected upper bound is: 52.78.

The projected lower bound is: 51.90.

The projected closing price is: 52.34.


A black body occurred (because prices closed lower than they opened).
During the past 10 bars, there have been 5 white candles and 5 black candles. During the past 50 bars, there have been 24 white candles and 26 black candles for a net of 2 black candles.

A spinning top occurred (a spinning top is a candle with a small real body). Spinning tops identify a session in which there is little price action (as defined by the difference between the open and the close). During a rally or near new highs, a spinning top can be a sign that prices are losing momentum and the bulls may be in trouble.

Momentum Indicators

Momentum is a general term used to describe the speed at which prices move over a given time period. Generally, changes in momentum tend to lead to changes in prices. This expert shows the current values of four popular momentum indicators.

Stochastic Oscillator

One method of interpreting the Stochastic Oscillator is looking for overbought areas (above 80) and oversold areas (below 20). The Stochastic Oscillator is 14.3458. This is an oversold reading. However, a signal is not generated until the Oscillator crosses above 20 The last signal was a sell 15 period(s) ago.

Relative Strength Index (RSI)

The RSI shows overbought (above 70) and oversold (below 30) areas. The current value of the RSI is 50.80. This is not a topping or bottoming area. A buy or sell signal is generated when the RSI moves out of an overbought/oversold area. The last signal was a sell 75 period(s) ago.

Commodity Channel Index (CCI)

The CCI shows overbought (above 100) and oversold (below -100) areas. The current value of the CCI is -85. This is not a topping or bottoming area. The last signal was a sell 5 period(s) ago.


The Moving Average Convergence/Divergence indicator (MACD) gives signals when it crosses its 9 period signal line. The last signal was a sell 1 period(s) ago.

Rex Takasugi – TD Profile

FOREX PHP= closed down -0.011 at 52.340. Volume was 100% below average (consolidating) and Bollinger Bands were 29% narrower than normal.

Open High Low Close Volume___
52.349 52.349 52.340 52.340 2

Technical Outlook
Short Term: Oversold
Intermediate Term: Bullish
Long Term: Bullish

Moving Averages: 10-period 50-period 200-period
Close: 52.51 52.15 51.38
Volatility: 3 5 6
Volume: 3,744 3,545 3,753

Short-term traders should pay closer attention to buy/sell arrows while intermediate/long-term traders should place greater emphasis on the Bullish or Bearish trend reflected in the lower ribbon.


FOREX PHP= is currently 1.9% above its 200-period moving average and is in an upward trend. Volatility is low as compared to the average volatility over the last 10 periods. Our volume indicators reflect volume flowing into and out of PHP= at a relatively equal pace (neutral). Our trend forecasting oscillators are currently bullish on PHP= and have had this outlook for the last 17 periods. our momentum oscillator has set a new 14-period low while the security price has not. This is a bearish divergence.


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Credits : Javaworld


The Java virtual machine is a program whose purpose is to execute other programs. It’s a simple idea that also stands as one of our greatest examples of coding kung fu. The JVM upset the status quo for its time, and continues to support programming innovation today.

Use and definitions for the JVM

The JVM has two primary functions: to allow Java programs to run on any device or operating system (known as the “Write once, run anywhere” principle), and to manage and optimize program memory. When Java was released in 1995, all computer programs were written to a specific operating system, and program memory was managed by the software developer. So the JVM was a revelation.

Having a technical definition for the JVM is useful, and there’s also an everyday way that software developers think about it. Let’s break those down:

  • Technical definition: The JVM is the specification for a software program that executes code and provides the runtime environment for that code.
  • Everyday definition: The JVM is how we run our Java programs. We configure the JVM’s settings and then rely on it to manage program resources during execution.

When developers talk about the JVM, we usually mean the process running on a machine, especially a server, that represents and controls resource usage for a Java app. Contrast this to the JVM specification, which describes the requirements for building a program that performs these tasks.

Memory management in the JVM

The most common interaction with a running JVM is to check the memory usage in the heap and stack. The most common adjustment is tuning the JVM’s memory settings.

Garbage collection

Before Java, all program memory was managed by the programmer. In Java, program memory is managed by the JVM. The JVM manages memory through a process called garbage collection, which continuously identifies and eliminates unused memory in Java programs. Garbage collection happens inside a running JVM.

In the early days, Java came under a lot of criticism for not being as “close to the metal” as C++, and therefore not as fast. The garbage collection process was especially controversial. Since then, a variety of algorithms and approaches have been proposed and used for garbage collection. With consistent development and optimization, garbage collection has vastly improved.

The JVM in three parts

It could be said there are three aspects to the JVM: specification, implementation and instance. Let’s consider each of these.

1. The JVM specification

First, the JVM is a software specification. In a somewhat circular fashion, the JVM spec highlights that its implementation details are not defined within the spec, in order to allow for maximum creativity in its realization:

“To implement the Java virtual machine correctly, you need only be able to read the class file format and correctly perform the operations specified therein.”

J.S. Bach once described creating music similarly:

“All you have to do is touch the right key at the right time.”

So, all the JVM has to do is run Java programs correctly. Sounds simple, might even look simple from outside, but it is a massive undertaking, especially given the power and flexibility of the Java language.

2. JVM implementations

Implementing the JVM specification results in an actual software program, which is a JVM implementation. In fact, there are many JVM implementations, both open source and proprietary. OpenJDK’s HotSpot JVM is the reference implementation, and remains one of the most thoroughly tried-and-tested codebases in the world. HotSpot is also the most commonly used JVM.

Almost all licensed JVM’s are created as forks off the OpenJDK and the HotSpot JVM, including Oracle’s licensed JDK. Developers creating a licensed fork off the OpenJDK are often motivated by the desire to add OS-specific performance improvements. Typically, you download and install the JVM as a bundled part of a Java Runtime Environment (JRE).

3. A JVM instance

After the JVM spec has been implemented and released as a software product, you may download and run it as a program. That downloaded program is an instance (or instantiated version) of the JVM.

Most of the time, when developers talk about “the JVM,” we are referring to a JVM instance running in a software development or production environment. You might say, “Hey Anand, how much memory is the JVM on that server using?” or, “I can’t believe I created a circular call and a stack overflow error crashed my JVM. What a newbie mistake!”

Loading and executing class files in the JVM

We’ve talked about the JVM’s role in running Java applications, but how does it perform its function? In order to run Java applications, the JVM depends on the Java class loader and a Java execution engine.

The Java class loader in the JVM

Everything in Java is a class, and all Java applications are built from classes. An application could consist of one class or thousands. In order to run a Java application, a JVM must load compiled .class files into a context, such as a server, where they can be accessed. A JVM depends on its class loader to perform this function.

The Java class loader is the part of the JVM that loads classes into memory and makes them available for execution. Class loaders use techniques like lazy-loading and caching to make class loading as efficient as it can be. That said, class loading isn’t the epic brain-teaser that (say) portable runtime memory management is, so the techniques are comparatively simple.

Every Java virtual machine includes a class loader. The JVM spec describes standard methods for querying and manipulating the class loader at runtime, but JVM implementations are responsible for fulfilling these capabilities. From the developer’s perspective, the underlying class loader mechanisms are typically a black box.

The execution engine in the JVM

Once the class loader has done its work of loading classes, the JVM begins executing the code in each class. The execution engine is the JVM component that handles this function. The execution engine is essential to the running JVM. In fact, for all practical purposes, it is the JVM instance.

Executing code involves managing access to system resources. The JVM execution engine stands between the running program–with its demands for file, network and memory resources–and the operating system, which supplies those resources.

How the execution engine manages system resources

System resources can be divided into two broad categories: memory and everything else.

Recall that the JVM is responsible for disposing of unused memory, and that garbage collection is the mechanism that does that disposal. The JVM is also responsible for allocating and maintaining the referential structure that the developer takes for granted. As an example, the JVM’s execution engine is responsible for taking something like the new keyword in Java, and turning it into an OS-specific request for memory allocation.

Beyond memory, the execution engine manages resources for file system access and network I/O. Since the JVM is interoperable across operating systems, this is no mean task. In addition to each application’s resource needs, the execution engine must be responsive to each OS environment. That is how the JVM is able to handle in-the-wild demands.

JVM evolution: Past, present, future

In 1995, the JVM introduced two revolutionary concepts that have since become standard fare for modern software development: “Write once, run anywhere” and automatic memory management. Software interoperability was a bold concept at the time, but few developers today would think twice about it. Likewise, whereas our engineering forebears had to manage program memory themselves, my generation grew up with garbage collection.

We could say that James Gosling and Brendan Eich invented modern programming, but thousands of others have refined and built on their ideas over the following decades. Whereas the Java virtual machine was originally just for Java, today it has evolved to support many scripting and programming languages, including Scala, Groovy, and Kotlin. Looking forward, it’s hard to see a future where the JVM isn’t a prominent part of the development landscape.

More JavaWorld tutorials about the JVM

  • Trash talk, how Java recycles memory
  • The lean, mean virtual machine
  • Bytecode basics: A first look at bytecodes in the JVM
  • JVM exceptions: How the JVM handles exceptions
  • JVM performance optimization: A JVM technology primer

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