Steps:

1. Create your program file by any text editor you like
2. Using javac command compile your code into byte code
3. Using java command let JVM load and run your program

As fixture below describes:

Code

Save this code as HelloWorld.java on your disk.

package basic;

public class HelloWorld {
    public static void main(String[] args) {
        System.out.printf("Hello World!");
    }
}

Type these commands below to compile and run your very first Java program!