Swap Two Integers in Array

题目：

Given an array and two indexes, swap the integers on the two indices.

分析：

无

解法：

public class Solution {
    /**
     * @param A an integer array
     * @param index1 the first index
     * @param index2 the second index
     * @return void
     */
    public void swapIntegers(int[] A, int index1, int index2) {
        // Write your code here
        int temp = A[index1]; 
        A[index1] = A[index2];
        A[index2] = temp;
    }
}