JAVA Arrays 类的使用

package com.yang;
import java.util.Arrays;
public class Demo01 {
    public static void main(String[] args) {
        int[] a={15,9,64,18,91,23,1};
        System.out.println(Arrays.toString(a));
        Arrays.sort(a);//数组排序
        System.out.println(Arrays.toString(a));
        System.out.println(a[a.length-1]);

    }

}