First Hello World Program for beginners in JAVA

First of all we  create a main class like


public class HelloWorld
 {
  public static void main(String [] arg) 
          {
      //we have to print "Hello World " in the terminal window.
  
System.out.println("Hello World");
           }
}

and save it as the class name with first capital letter as HelloWorld.java .

If we run this program the output is Hello World, to run this program open cmd in bin and type javac file_name .java and hit enter you compiled it now you can run it by typing java file_name.