从键盘输入四个数保存在数组中，找出最大、最小值 java

import java.util.Scanner;

public class ZuiDaZuiXiao {
    public static void main(String[] args) {
        
        int a[] = new int[4];
        Scanner s = new Scanner(System.in);
        System.out.println("请输入4个数");
        //赋值数组
        for (int i = 0; i < a.length; i++) {
            a[i] = s.nextInt();
        }
        //找最大最小值
        int max, min;
        max = min = a[0];
        for (int i = 1; i < a.length; i++) {
            max = max > a[i] ? max : a[i];
            min = min < a[i] ? min : a[i];
        }
        System.out.println("最大值：" + max);
        System.out.println("最小值：" + min);
    }
}