VIP31/JavaSE/day10/src/com/lc/day10/dt04/Worker.java

package com.lc.day10.dt04;

import java.util.Arrays;

import static java.lang.System.*;

/**
 * ClassName: Worker
 *
 * @Author 爱扣钉-陈晨
 * @Create 2023/12/24 11:45
 * @Version 1.0
 */
public class Worker {
    //水果集合
    static Fruit[] fruits = new Fruit[10];

    //索引
    static int count = 0;

    public static void plantingFruit( Fruit f ){
        fruits[count++] = f;
    }

    public static Fruit plantingFruit( String name ){
        int index = getFruitName(name);
        Fruit fruit = fruits[index];
        //删除
        // [1,2,3,4] a  原数组  arraycopy  a , 0 , a ,
        // [0,1,0,0]  新数组
        arraycopy(fruits, index+1, fruits, index, count-index);
        //位置置为空
        fruits[count] = null;
        count--;
        //返回
        return fruit;
    }

    public static int getFruitName(String name){
        for (int i = 0; i < count; i++) {
            if (fruits[i].name.equals(name)){
                return i;
            }
        }

        return -1;
    }


    public static void main(String[] args) {
        int[] arr1 = {1,2,3,4}; // {1,3,4}

        System.arraycopy(arr1,3, arr1, 2, 1);

        System.out.println(Arrays.toString(arr1));

    }

}