HelloJavaBuddy.java, first java code

Create the first java program, HelloJavaBuddy.java, using plain text editor.

public class HelloJavaBuddy {

 public static void main(String[] args) {
  System.out.println("Hello, Java-Buddy!");
 }
 
}

Compile the code using the command:
javac HelloJavaBuddy.java

Run it:
java HelloJavaBuddy