How to execute Java code?

To run Java code, the following steps are required:

1. Install Java Development Kit (JDK): Install JDK on your computer, making sure to select the option to add to the system path during the installation process.
2. Write Java code: Use any text editor (such as Notepad++, Sublime Text, Eclipse, etc.) to write Java code, and save it as a file with a “.java” extension.
3. Compile Java code by opening the command prompt (Windows) or terminal (Mac/Linux), navigating to the directory containing the Java code file, and using the “javac” command to compile the code. For example, if your code file is named “HelloWorld.java”, you can enter the following command in the command prompt to compile the code: javac HelloWorld.java. After successful compilation, a bytecode file with a “.class” extension will be generated.
4. Run Java code: Use the “java” command to execute the compiled Java program. Enter the following command in the command prompt: java HelloWorld.

Make sure that when compiling and running the code, your command prompt or terminal’s current working directory matches the directory where the Java code file is located. If everything goes smoothly, you will see the output of the Java program in the command prompt or terminal.