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Sort Colors

Given an array with n objects colored red, white or blue, sort them in-place   so that objects of the same color are adjacent, with the colors in the order red, white and blue. Here, we will use the integers 0, 1, and 2 to represent the color red, white, and blue respectively. Note:  You are not suppose to use the library's sort function for this problem. Example: Input: [2,0,2,1,1,0] Output: [0,0,1,1,2,2]   class Solution {    public void sortColors(int[] nums) {         int low = 0;         int mid = 0;         int high = nums.length - 1;         int temp = 0;         while (mid <= high) {             switch (nums[mid]) {                 ca...