PivotIndex.java

public class PivotIndex {
 public int pivotIndex(int[] nums) {
 int suml = 0, sumr = 0;
 for (int i = 0; i < nums.length; i++)
 sumr += nums[i];
 for(int i = 0; i < nums.length; i++){
 if(suml==sumr-nums[i]) return i;
 else
 {
 suml += nums[i];
 sumr -= nums[i];
 }
 }
 return -1;
 }

 public static void main(String[] args) {
 int[] nums = { 1, 7, 3, 6, 5, 6 };
 PivotIndex obj = new PivotIndex();
 System.out.println(obj.pivotIndex(nums));

 }
}