Providing Invocation Contexts for Test Templates Before and After Test Execution Callbacks Running JUnit 4 Tests on the JUnit Platform Dependency Injection for Constructors and Methods Changing the Default Test Instance Lifecycle Operating System and Architecture Conditions Setting the Default Display Name Generator Meta-Annotations and Composed Annotations In this example, I am going to create a file named Main.java. Now you'll learn how to create a Java file. But I prefer Visual Studio Code or IntelliJ IDEA IDE.Īnd finally, the Java file name and the public class name should be identical. You can use any text editors / IDEs you want. class file from any operating system you want! Since Java is a platform-independent language (which means you can run the Java program from any operating system if you have installed the necessary components there), you can simply run this.

If you do not know anything about that, then simply check out this article (if you are a Windows user).Īlso, when we compile the Java source code (. Second, you have to ensure that you have properly installed the Java compiler (JDK) on your computer. These extensions also help identify whether that specific compiler/interpreter can support that file format or not.

An extension is something that is appended at the end of the file name, and it indicates which type of file it really is.ĭifferent programming languages have different file extensions which help the compilers/interpreters identify which type of programming data the file contains.

🫵 What You Need to Know Firstīefore you start writing Java code, there are a few things you should know.įirst of all, Java source files have the extension. So that's what I'll show you how to do here if you are learning Java for the first time. If you are learning a programming language, the first thing you do is print something in the terminal/command prompt.Īnd that first thing is likely printing 'Hello World' in the terminal.

Run java on visual studio code