Install the Java Development Kit (JDK)
Verify installation with `java -version` and `javac -version`
Save your code in a file with a `.java` extension
Open a terminal or command prompt
Go to the folder containing the `.java` file
Compile the program with `javac FileName.java`
Run the compiled program with `java FileName`
Use the class name, not the file name extension, when running the program
Ensure the `main` method is present in the class
Make sure the class name matches the file name exactly if it is public