Answers for "hello world program in java with explanation"

java hello world

public class Main {

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

hello world java

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

java Hello World

public class HelloWorld {

   public static void main(String[] args) {

      System.out.println("Hello, World");
   }

}