Write a function that will return the total of the following

Write a function that will return the total of the following statement

1*100 + 2*99 + 3*98 + ....+ 99*2 + 100*1

public int fun() {

}

Solution

TestFun.java

public class TestFun {

  
   public static void main(String[] args) {
   new TestFun();
   }
   public TestFun(){
       int result = fun();
       System.out.println(\"The total is \"+result);

   }
   public int fun() {
   int total = 0;
   for(int i=1; i<=100; i++){
   for(int j=100; j>=1; j--){
   total = total + i *j;
   }
   }
   return total;
   }
}

Output:

The total is 25502500