Solution.java

package com.pekall.onlinetest;

public class Solution {
	public int equi(int[] A) {
		int i, j;
		int left = 0;
		int right = 0;
		int length = A.length;

		for (i = 1; i < length; i++) {
			left += A[i - 1];
			for (j = i + 1; j < length; j++) {
				right += A[j];
			}
			if (left == right && (i + 1) < length)
				return i;
		}
		return -1;
	}
	
	public static void main(String[] args) {
		int[] test = {-7, 1, 5, 2, -4, 3, 0};
		Solution solution = new Solution();
		System.out.println("result of equi = " + solution.equi(test));
	}
}