插入排序（Java实现）

public class Solution {
    public static void main(String[] args) {
        Solution solution = new Solution();
        int[] arr = {5, 2, 3, 4, 1};
        solution.insertSort(arr);
    }

    private void insertSort(int[] arr) {
        int n = arr.length;
        int i, j, t;
        for (i = 1; i < n; i++) {
            t = arr[i];
            for (j = i - 1; j >= 0 && arr[j] > t; j--) {
                arr[j + 1] = arr[j];
            }
            arr[j + 1] = t;
        }
    }
}