java full important program

Problem: 1.6

                            Write a program that displays the result of

             1 + 2 + 3 + 4 + 5 + 6 + 7 + 8 + 9.

Discripition:

                 Their are two ways of solutions simple way and by using formula

Solution 01:

                     public class Message {

    public static void main(String[] args) {

         

             System.out.println("The result is "+(1 + 2 + 3 + 4 + 5 + 6 + 7 + 8 + 9));

    }

   

}

Solution 2:

                public class Message {

                public static void main(String[] args) {

          int sum=0;

          sum=9*(9+1)/2;

             System.out.println("The result is "+sum);

    }

   

}

 OutPut