Java Programs Made Easy

Q)... Input a int array. Square the elements in even position and cube the elements in odd position and add them as result.
input: {1,2,3,4}
output: 1^3+2^2+3^3+4^2

1. package Set1;
2. public class ClassSet24 {
3. public static int squaringAndCubingOfElements(int[] a){
4.  int n1=0,n2=0;
5.  for(int i=0;i<a.length;i++)
6.   if(i%2==0)
7.    n1+=(a[i]*a[i]*a[i]);
8.   else
9.    n2+=(a[i]*a[i]);
10.  return (n1+n2);
11. }
12. public static void main(String[] args) {
13.   int a[]={1,2,3,4,5,6};
14.   System.out.println(squaringAndCubingOfElements(a));
15.  }
16. }