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Nathaniel Temmy Y.Computer scientists , Nigeria
$30 /hr
0 Years Exp.
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I'm an undergraduate, studying computer science
Haron Software developer, Kenya
$7 /hr
4 Years Exp.
0 Followers
Am an experienced software developer for four years
Suresh Shanmugham Senior Software Engineer, India
$18 /hr
8 Years Exp.
0 Followers
I am a experienced Java Backend developer having more than 8 years of experience in micro service design and coding with latest technologies
Rajesh Senior Java developer, India
$30 /hr
6 Years Exp.
0 Followers
IAM a sun certified Java developer 7+ years of experience in Java & J2EE Applications.
Varun Varma Software Developer, India
$10 /hr
10 Years Exp.
0 Followers
I am a Software Developer in Java & Spring
I student Of Computer Science and Java programmer and I know Linux last 3 year
Nitin Senior Software Engineer, India
$17 /hr
60 Years Exp.
0 Followers
I am having deep knowledge in Java Related technology, currently working on microservices. I am having 4.7 years experience in developing Java applica...Read More
Amanullah S.Java Developer, Pakistan
$4 /hr
10 Years Exp.
0 Followers
I am Java Developer with mid-level skills.
Surya Integration architect , India
$17 /hr
12 Years Exp.
0 Followers
I am a senior java developer with integration experience on apache camel, jboss fuse esb, mulesoft esb, spring boot.
Laban Data Analyst, Kenya
$10 /hr
5 Years Exp.
0 Followers
I am a trained expert in Data Analytics with 4 years in the field
Aman Business Development Manager, India
$20 /hr
14 Years Exp.
0 Followers
I will provide you devlopers with expertise on different technologies for your idea of sofware development.
I am managing director at GoldenApp Studio And heaving 1-2 year experience .
Yash S.WebSite Developer, India
$5 /hr
1 Years Exp.
0 Followers
I am certified in web designing and also i have done some small data entry work as a part time.
Amulya Software, India
$11 /hr
0 Years Exp.
0 Followers
I'm a certified cpp programmer and java script developer??☺️
Ninad G.Java Developer, India
$17 /hr
8 Years Exp.
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I am a java developer with 8 years of experience in designing, implementing and testing highly cohesive, resilient and robust applications. Experience...Read More
Gulam Java developer, Bangladesh
$15 /hr
7 Years Exp.
0 Followers
Skilled Java Developer Architect with 8+ years of experience in the full SDLC creating dynamic web applications. Updates functionality based on custom...Read More
Vinod Kumar Saini Lead Engineer, India
$25 /hr
5 Years Exp.
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I am a java developer and working in mnc company as a lead Engineer from last 6 years. I am having experience in telecom and sales and distribution sy...Read More
Samrat Sr. Software Developer, India
$10 /hr
2 Years Exp.
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I am Java EE Developer. I am worked extensively on Spring framework including Spring Boot, Spring MVC, Spring Batch. I have also worked with Node,js a...Read More
Yogesh IT Engineer, India
$3 /hr
1 Years Exp.
0 Followers
I am having 2.7 Years of experience in IT industry
Maneesh M.none, India
$10 /hr
0 Years Exp.
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Gideon G.Software Developer, India
$26 /hr
3 Years Exp.
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I am experienced in developing android apps since 3 years.I have interacted with many of the business concepts to convert it into the real world app....Read More
Samrat Senior Java Developer, India
$11 /hr
2 Years Exp.
0 Followers
I am a Java EE Developer with 2+ years of experience having experience in Batch Processing, Spring Boot, Spring Batch, REST API, SQL programming, Spri...Read More
Shimoni P.Web designer, India
$9 /hr
0 Years Exp.
0 Followers
I am pursuing my graduation
Over 8 years of rich experience in software back-end development life cycle which includes the following: Design and implementation : a) Design an...Read More
Deepa N.Java Full Stack Developer, India
$15 /hr
5 Years Exp.
0 Followers
I am a Java developer with 5 years of experience in Java technologies from the Core.
Pratap M.I am a programming enthusiast. Problem solver., India
$0 /hr
0 Years Exp.
0 Followers
i am experienced in c,c++,java,php,python,java script and also worked on robotics and embedded systems along with artificial Intelligence . I am looki...Read More
Jay T.Application Development Manager, India
$18 /hr
11 Years Exp.
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I've been working professionally as a Application Development Manager and I am responsible for the development of upgrades to our proprietary pro...Read More
Smart W.Multitasker Professional, India
$21 /hr
2 Years Exp.
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I am an engineering graduate from National Institute of Technology with work experience in application development, pre sales, knowledge management, m...Read More
Shishir S.Technical lead, India
$9 /hr
11 Years Exp.
0 Followers
I am certified Java developer with over 11 years of working in Enterprise scale applications with multiple MNCs and banks. Experience working in AWS
Limaj F.Developer, Philippines
$13 /hr
2 Years Exp.
0 Followers
I have 2 year experience Java and arduino development then one year experience on node and angular development and for editing skill 2 years experienc...Read More
Sai S.Senior Systems Engineer, India
$3 /hr
2 Years Exp.
0 Followers
Working in full stack development of applications using spring micro services and react-redux with experience of 2 years
Sachin Android App Developer, India
$17 /hr
1 Years Exp.
0 Followers
I'm an experienced developer, have contributions to open-source and Stack Overflow. Why I am better hire than other Android developers: -u...Read More
I am certified Google Cloud Professional Architect and AWS certified Solutions Architect-Associate. •Around 15+ years of experience in Analysis, Desig...Read More
Adeyeye G.Full Stack Developer, Nigeria
$25 /hr
6 Years Exp.
0 Followers
I am a Certified PHP Developer with 6+ years experience. I have worked with many organisations and businesses using PHP, JAVA and Front-end langu...Read More
Freelance S.Developer, India
$10 /hr
13 Years Exp.
0 Followers
I have experience in Java , J2EE, PL/SQL, SQL , VBA
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Skills related to Java

Articles Related To Java


Over the last year or so, programming languages have regularly been prefixed with a curious word: modern, Modern Java. But what exactly does modern mean when used in this way?

 

When someone talks about modern languages, they're really just talking about how refined, how advanced and how convenient a programming language is. This also means that the language is capable enough not just to solve problems of the present, but of the future as well. A long line of features like scalability, being cloud-ready, and supporting newer paradigms and architectures is expected of a "modern" programming language.

 

Today, in fact, java is the most used runtime platform on enterprise systems (more than 97% of desktops). But more than that, its virtual machine powers packages and custom business applications, and a wide array of mobile and other embedded platforms.

 

Currently, according to Oracle, more than 3 billion devices run Java in some form. Most major companies use Java for some of their functions and Java server applications are processing tens of millions of requests each day.

 

Why java is so popular?

One of the most important reasons why Java is so popular is the platform independence. Java is a concurrent, class-based, and object-oriented programming language. It was initially designed to have as few implementation dependencies as possible, which lead to the term "write once, run anywhere" (WORA). This means that compiled Java code can run on all platforms with no need for recompiling the code.

 

Java-based applications are known for their speed and scalability. Its efficient processing speeds are used in software, computer games, and mobile Apps. Java supports Multithreading. Multithreading means handling more than one job at a time, so get more process get done in less time than it could with just one thread. Java is also a statically typed language, so that it brings a much greater degree of safety and stability to its programs compared to other popular languages. This safety and stability is a necessity for companies who require major bandwidth in their software and apps.

 

Is Java worth learning?

Java is still a relevant programming language that shows no sign of declining in popularity. Most developers choose it up as their initial programming language because it's reasonably simple to learn.

 

Since the language has an English-like syntax with minimum special characters, Java could be learned in a very short time span and used to build appropriate applications. It is part of a family of languages that are heavily influenced by C++ (as well as C#), thus learning Java offers vast benefits when learning these alternative two languages.

 

"Developing programs is a kind of making art, once you learn clearly and spend your time with full involvement; the creation of art became so easy and simple."

 

General Advantages of Using Java for Business Applications:

Programming with Java is incredibly common for banking and web applications. Compared to other programming languages, Java definitely stands out in terms of security functionality and environment. It comes with certain built-in security features such as:

 

Java apps are able to manage their own use by multiple users at the same time, creating threads for each use within the program itself, rather than having to run multiple copies of the programming in the same hardware. Each thread is tracked until the "work" is finished.

 

Java is so versatile and provides robust customized solutions for almost any type of business need. This "referred position" shows no signs of declining, especially now that Java 10 is on the horizon. It just keeps getting better.

 

Advanced Authentication and Access Control that allows incorporating a range of secure login mechanisms, along with creating the custom security policy and enforce a well-defined permission access policy to sensitive data.

 

Cryptography

Advanced Authentication and Access Control that allows incorporating a range of secure login mechanisms, along with creating the custom security policy and enforce a well-defined permission access policy to sensitive data.

 

Java apps are able to manage their own use by multiple users at the same time, creating threads for each use within the program itself, rather than having to run multiple copies of the programming in the same hardware. Each thread is tracked until the "work" is finished.

 

Java is so versatile and provides robust customized solutions for almost any type of business need. This "referred position" shows no signs of declining, especially now that Java 10 is on the horizon. It just keeps getting better.

 

 

Nowadays, Android is not just on tens of thousands of different phones and tablets. It’s on your wrist, in your living room, in your car, and as soon we start assigning IP addresses to inanimate objects, it is going to be pretty much everywhere around us. A lot of ground for even an experienced Android developer to cover!

 

Also there are over one million apps on Google Play, not counting Amazon AppStore or markets we are not generally interested in.

 

So, how can an independent developer create a successful app in this huge market with big players? I have no idea, I haven’t made a successful app! But, I have made a cute one, and I’d like to share my story with you.

Few Android Studio Tips, Tricks & Resources you should be familiar with, as an Android Developer

The reason of this article, is to list helpful tips, tricks, shortcuts and resources for Android Studio that will improve your overall efficiency and performance.

 

1.Material Colors theme for Android Logcat

To change Android Studio Logcat you need to go to:Preferences (Settings on Windows / Linux machines) → Editor → Colors & Fonts → Android Logcat and change the foreground color for every type of log.

 

2. Prevent Android Studio Logcat from clearing the log for the current application when it crashes. 

To do that you need to go to theAndroid Monitorpanel and chooseEdit filter configurationon the right side dropdown.

 

3. Apply a proper code style to your IDE (IntelliJ / Android Studio). 

Go toPreferences → Code Style → Javaand in aSchemedropdown you can choose your code style (or set up a new one).

2 styles which are especially worth to mention:

Square Java Code Styles with Android

Google Java Code Style.

 

4. Use split screen for increasing efficiency.

To turn this feature on, you need to right mouse click on the tab of your main screen and choose Split Vertically / Horizontally feature.

But to be as efficient as possible we need to set up a custom keyboard’s shortcut. To do that go to Preferences → Keymap and search for Split Vertically. Then open a context menu and click Add Keyboard Shortcut

It is shown on a gif below. You can define the shortcut for a horizontal split view as well.

 

5. Distraction Free Mode. 

You can enable it by going to: View → Enter Distraction Free Mode

 

6. Use Live Templates

you can use many already defined templates, like for Toasts or if conditions.

you can use your own custom templates. Here is a great reference article by Reto Meier. You can also refer to the IntelliJ IDEA documentation.

 

Learn XML And Java

Extensible markup language (XML) is a markup language that’s the foundation for the Android user interface (UI) and elements. Java is the back-end coding language of the Android platform, and it’s used with binding functionality with your XML layouts. Let’s take a look at a small example.

 

<?xml version="1.0" encoding="utf-8"?> <layout xmlns:android=http://schemas.android.com/apk/res/android"> <data> <variable name="user" type="com.example.User"/> </data> <LinearLayout android:orientation="vertical" android:layout_width="match_parent" android:layout_height="match_parent"> <TextView android:layout_width="wrap_content" android:layout_height="wrap_content" android:text="@{user.firstName}"/> <TextView android:layout_width="wrap_content" android:layout_height="wrap_content" android:text="@{user.lastName}"/> </LinearLayout> </layout>

 

This small layout has one data object defined as “User.” For developers used to binding elements in even web design, this should be intuitive for you. The data element is defined in Java, and then the object data is bound to the front-end layout element. In this example, we have a first and last name. The following Java code is an example of a User class used for the binding.

 

public class User { public final String firstName; public final String lastName; public User (String firstName, String lastName){ this.firstName = firstName; this.lastName = lastName; } }

Notice that the constructor takes a first and last name variable and binds the data to the public class properties. When the screen opens on the device, this data is then bound to the front-end elements.

 

Before you get started in Android Application development, you should be expert in both of these technologies. Understanding the fundamentals of XML formats is relatively easy, but Java is an object-oriented language and object-oriented programming (OOP) can be challenging if you’re not familiar with the concept. A newer language and framework, Kotlin, has been introduced to help advance Android app development. It can also be used with legacy Java apps as Kotlin co-operates with Java code.

 

The best way to learn Java is to dive into someone else’s code. GitHub is filled with open-source projects that help you understand Java and OOP concepts. The better your OOP skills are, the easier it will be to create a better coded, less buggy Android app.

 

Understand Memory Limitations

Mobile devices don’t have the high memory limitations that desktops have. In mobile programming, you must learn to code with smaller memory limitations in mind. If you carelessly use memory on an Android device, you run the risk of your app crashing due to “out of memory” errors.

To work around this, use services on the device sparingly and release memory resources when your app is hidden. You can release memory resources by overriding the onTrimMemory event although you should know that this isn’t a magic solution that allows you to ignore other performance optimization throughout your code. The following is a small sample of pseudocode that shows you how to override the event.

@Override public void onTrimMemory(int level) { if (level >= TRIM_MEMORY_MODERATE) {

//release resources here } }

Google also recommends that you avoid or at least reduce the use of bitmaps to lower the memory use when your app is running on the device. 

 

Don’t Use The Emulator For Real-World Testing

The Emulator in Android Studio is good for development and even debugging, but it doesn’t fully simulate a working Android device. You can consider basic environment features with the Emulator, but when it comes to testing, you should always use actual devices.

Of course, this is a huge investment for an Android developer, but it will make the entire development and testing life cycle much more efficient. It also ensures that you’re able to test your applications in various conditions as the user changes settings on the actual device. You can, however, use automated cloud solutions such as Amazon’s Testing platform.

 

Testing should never be taken lightly. It should be a major part when you design and deploy apps for your clients. Fewer bugs means happier users, and it can also mean a more successful app in Google Play. This doesn’t mean that you need to buy every device on the market to test your app on, but you should account for some of the more popular ones and the most common screen sizes.

Python and Java both lay claims to being among the top five most popular programming languages at any given time, with Java usually just ahead of Python. However, Python’s popularity is growing at a tremendous rate, and Python overtake Java in 2018.

 

Python is a high-level, interpreted, interactive and object-oriented scripting language. Python was designed to be highly readable which uses English keywords frequently whereas other languages use punctuation and it has fewer syntactical constructions than other languages.

 

Java and Python have many similarities. Both languages have strong cross-platform support and extensive standard libraries. They both treat (nearly) everything as objects. Both languages compile to bytecode, but Python is (usually) compiled at runtime.

 

Python versus Java:

  1. Java language is more about syntax, if one can forget to add curly braces or semicolon in the end then this will show error as your output. But there is nothing like that with python there is no need of semicolon and curly braces in the end but python follows indentation process so that it will make your code readable.
  2. Java programming is statically typed means that one has to explicitly mention the data type of variable. If datatype (int, float, double, character) isn’t mentioned then the error can occur in program. Python is dynamically typed means if one has directly assigned a value to a variable at the runtime then it'll assume data type.
  3. Java codes are more complex than python codes. Try to write a hello world program in both then you'll observe the complexness of the code, four lines of code in Java and same hello world program in python are of 1-line code.
  4. Python has a large and robust standard library makes Python score over other programming languages. The standard library allows you to choose from a wide range of modules according to your precise needs. Each module further enables you to add functionality to the Python application without writing additional code.
  5. Python is an open source programing language, Python helps you to curtail software system development cost significantly. You’ll even use many open source Python frameworks, libraries and development tools to curtail development time without increasing development cost. You even have choice to select from a wide range of open source Python frameworks and development tools per your precise needs.
  6. Interpreted, with tools like IDLE, you can also interpret Python instead of compiling it. While this reduces the program length, and boosts productivity, it also results in slower overall execution.
  7. Python is considered to be the most favorable language for Machine Learning, Artificial Intelligence, IoT and much more.
  8. Python has a more unified support model than Java for the first time, and open source developers are focusing their efforts on the latest version of the language.
  9. After working on large projects in both languages, I feel secure saying that Python’s syntax is more concise than Java’s. It’s easier to get up and running quickly with a new project in Python than it is in Java.
  10. The most two popular frameworks for Python are Django and Flask. Flask is a micro web framework, it gives you the basic functionalities you’d need like routing requests without much overhead. Django is a more featured option and can help you build a powerful backend while capitalizing on efficiency and security, Django is equipped with a powerful ORM layer which facilitates dealing databases and performing different operations on the data.

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