代码实现:输入三个整数x,y,z，请把这三个数由小到大输出。

import java.util.Arrays;
import java.util.Scanner;

//输入三个整数x,y,z，请把这三个数由小到大输出。
public class Test {

	public static void main(String[] args) {
		Scanner sc = new Scanner(System.in);
		int[] arr = new int[3];
		int count = 0;
		int s=0; ;
		while (count <= 2) {
			System.out.println("请输入第" + (count + 1) + "个整数:");
			String ss = sc.nextLine();
			count++;
			try {
				s = Integer.parseInt(ss);
				arr[count-1] = s;

			} catch (Exception e) {
				System.out.println("输入非法,请正确输入");
				count--;
			}
		}

		Arrays.sort(arr);
		System.out.print("这三个数的从小到大的排序为: " );
		for (int i : arr) {
			System.out.print(i+" ");
		}
	}

}