16. 3Sum Closest java solutions

Given an array S of n integers, find three integers in S such that the sum is closest to a given number, target. Return the sum of the three integers. You may assume that each input would have exactly one solution.

    For example, given array S = {-1 2 1 -4}, and target = 1.

    The sum that is closest to the target is 2. (-1 + 2 + 1 = 2).

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public class Solution {
    public int threeSumClosest(int[] nums, int target) {
        int ans = 0,min = Integer.MAX_VALUE;
        Arrays.sort(nums);
        for(int i = 0; i < nums.length-2; i++){
            if(i > 0 && nums[i] == nums[i-1])
                continue;
            for(int s = i + 1,e = nums.length-1;s < e;){
                int sum = nums[i] + nums[s] + nums[e];
                if(Math.abs(sum - target) < min){
                    min = Math.abs(sum-target);
                    ans = sum;
                }
                if(sum > target) e--;
                else if(sum < target) s++;
                else return ans;
            }
        }
        return ans;
    }
}