输入三个整数x,y,z，请把这三个数由小到大输出——java编程实现

输入三个整数x,y,z，请把这三个数由小到大输出。

[code]import java.util.Scanner;

public class Main {
public static void main(String[] args) {
Scanner scan = new Scanner(System.in);
System.out.println("请输入三个整数:");
int x = scan.nextInt();
int y = scan.nextInt();
int z = scan.nextInt();

int a = 0;
if(x > y) {
a = y;
y = x;
x = a;
}
if(x > z) {
a = z;
z = x;
x = a;
}
if(y > z) {
a = z;
z = y;
y = a;
}

System.out.println(x+"<"+y+"<"+z);
}

}