Hi Friend,

Try the following code:

import java.util.*;
class FindDifference 
{
    public static void main(String[] args) 
    {
        int sum=0,sum1=0,sum2=0;
        Scanner input=new Scanner(System.in);
        System.out.println("Enter value of n: ");
        int n=input.nextInt();
        for(int i=1;i<=n;i++){
            int sq=i*i;
            sum1+=sq;
        }
        //System.out.println(sum1);
        for(int i=1;i<=n;i++){
            sum+=i;
        }
        sum2=sum*sum;
        //System.out.println(sum2);
        int diff=0;
        if(sum1>sum2){
        diff=sum1-sum2;
        }
        else{
            diff=sum2-sum1;
        }
        System.out.println(diff);

    }
}

Thanks