15 输入三个整数x,y,z，请把这三个数由小到大输出。

题目：输入三个整数x,y,z，请把这三个数由小到大输出。

     public class _015ThreeNumberSort {
 
     public static void main(String[] args) {
         while (true) {
             threeNumberSort();
         }
     }
 
     private static void threeNumberSort() {
         int x, y, z;
         Scanner in = new Scanner(System.in);
         System.out.println("请输入第一个数:");
         x = in.nextInt();
         System.out.println("请输入第二个数:");
         y = in.nextInt();
         System.out.println("请输入第三个数:");
         z = in.nextInt();
 
         numberSort(x, y, z);
     }
 
     private static void numberSort(int x, int y, int z) {
         int temp = 0;
         if (x > y) {
             temp = x;
             x = y;
             y = temp;
         }
         if (x > z) {
             temp = x;
             x = z;
             z = temp;
         }
         if (y > z) {
             temp = y;
             y = z;
             z = temp;
         }
 
         System.out.println("三个数由小到大排列为:" + x + " " + y + " " + z);
     }
 
 }