java 数组的复制

package com.yuyang.anli;

public class Test5 {
    public static void main(String[] args) {
        int[] arr1={11,22,33,44};
        int[] arr2=new int[arr1.length];
        copy(arr1,arr2);
        array(arr1);
        System.out.println("");
        array(arr2);
    }
    public  static void copy(int[] arr1,int[] arr2){
        for (int i = 0; i < arr1.length; i++) {
            arr2[i]=arr1[i];

        }

    }
    public static void array(int[] arr){
        System.out.print("[");
        for (int i = 0; i < arr.length; i++) {
            System.out.print(arr[i]+",");
            if(i==arr.length){
    System.out.print(arr[i]);
}
        }
        System.out.print("]");
    }
}