Java题目~Java返回数组的最大值

package com.europeansheik.test;


public class test {
    public static void main(String[] args) {
        int[] arr = {1,2,3};
        System.out.println(maxNum(arr));
    }
    public static int maxNum(int[] arr){
        int max = 0;
        for (int i = 0;i max) {
                max = arr[i];
            }
        }
        return max;
    }
}