CodeChef - A Platform for Aspiring Programmers. CodeChef was created as a platform to help programmers make it big in the world of algorithms, computer programming, and programming contests.At CodeChef we work hard to revive the geek in you by hosting a programming contest at the start of the month and two smaller programming challenges at the middle and end of the month. Online Java IDE. Fast and functional online Java compiler; Always runs the latest version of Java; Functions: Paste source to GitHub and share with others; Download compiled source files (.java,.class,.jar).NEW! Import a Gist (press F3). Features: Many themes included for ease of coding; Optional command-line arguments. Overall, it is a great tool to code in Java. Try the Codiva.io online Java compiler here. SEE MORE: One year after Java 8’s release, IDEs and compilers are not fully ready yet 2. JDoodle is a popular online compiler for Java. It started for Java, but now supports almost 70 languages.
With W3Schools online code editor, you can edit HTML, CSS and JavaScript code, and view the result in your browser.
Example
<!DOCTYPE html>
<html>
<head>
<title>Page Title</title>
<style>
body {
background-color: black;
text-align: center;
color: white;
}
</style>
</head>
<body>
<h1>This is a Heading</h1>
<p>This is a paragraph.</p>
<img src='avatar.png' alt='Avatar'>
</body>
</html>
Try it Yourself »<html>
<head>
<title>Page Title</title>
<style>
body {
background-color: black;
text-align: center;
color: white;
}
</style>
</head>
<body>
<h1>This is a Heading</h1>
<p>This is a paragraph.</p>
<img src='avatar.png' alt='Avatar'>
</body>
</html>
Click on the 'Try it Yourself' button to see how it works.
The window to the left is editable - edit the code and click on the 'Run' button to view the result in the right window.
The 'Result Size' returns the width and the height of the result window in pixels (even when you resize the browser window).
You can control the size of a window with the bar in between the windows (draggable gutter).
The icons are explained in the table below:
Icon | Description |
---|---|
Go to www.w3schools.com | |
Menu button for more options | |
Save your code (and share it with others) | |
Change orientation (horizontally or vertically) | |
Change color theme (dark or light) |
If you are new to coding, we suggest that you start with HTML, and move on to CSS and JavaScript:
HTML TutorialCSS TutorialJavaScript TutorialWith W3Schools online code compiler, you can edit Python, C#, C++, PHP, Node.js, Java, Bash, Clojure, Fortran, Go, Kotlin, Perl, R, Ruby, Scala, Swift, TypeScript, and VB.NET code, and view the result in your browser.
# We need this line of code to show graphs in our compiler
bitmap(file='out.png')
# Create a vector of pies
x <- c(10,20,30,40)
# Display the pie chart
pie(x)
Try it Yourself »bitmap(file='out.png')
# Create a vector of pies
x <- c(10,20,30,40)
# Display the pie chart
pie(x)
Click on the 'Try it Yourself' button to see how it works.
The window to the left is editable - edit the code and click on the 'Run' button to view the result in the right window.
The Dropdown list to the right of the 'Run' button allows you to change programming languages.
By selecting the 'input' tab, you can add user input to use in the code.
The '+' tabs allows you to add additional files (for the same language you are currently running) to run.
The 'Result Size' returns the width and the height of the result window in pixels (even when you resize the browser window).
You can control the size of a window with the bar in between the windows (draggable gutter).
The icons are explained in the table below:
Icon | Description |
---|---|
Go to www.w3schools.com | |
Menu button for more options | |
Change orientation (horizontally or vertically) | |
Change color theme (dark or light) |
Run your Java code without installing anything
Using myCompiler, you can run your code instantly from any device.Just visit our website, select a language, type in your code andhit 'Run!'Write your code without having to spend hours figuring out how toset up a programming environment.
Feature-rich code editor
myCompiler's editor supports autocomplete and syntax highlightingout of the box, which makes writing code a breeze.
Multi-language support
Write programs in your favourite language, or start learning a new language.myCompiler supports 21 languages with more to come.
Tag and search your code
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Organize your programs with tags and easily find them lateron with multi-language search.