//Program to show a for loopp //Calculation of summation of numbers from 1 to 10

class forloop

{

    public static void main(String[] args)

        {

            int sum = 0;

            for (int i=1 ; i<=10 ; i++)

            {

                sum = sum+i;

            }

            System.out.println(sum);

        }

}

Program for Hello World on JAVA

public class HelloWorld { 

   public static void main(String[] args) {

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

   }

}

Program to add two numbers using JAVA

public class TwoNumberSum {  

   public static void main(String[] args) {

      int number1 = 11;  

      int number2 = 22;

      int sum;           

      sum = number1 + number2;

      System.out.print("The sum is ");  

      System.out.println(sum);           

   }

}