如何将水果添加到数组java？

Question

我必须为涉及数组的Fruit程序编写两个方法。其中一个是public void addFruit(String other)，另一个是public void deleteFruit(String del)。我已经完成了deleteFruit。

我如何进行addFruit？

我不知道代码是什么或如何编码。

public class Fruit {

private String[] bowl;

public Fruit()
{
    bowl = new String[10];
    bowl[0] = "apple";
    bowl[1] = "banana";
    bowl[2] = "kiwi";
    bowl[3] = "lemon";
    bowl[4] = "lime";
    bowl[5] = "mango";
    bowl[6] = "orange";
    bowl[7] = "pear";
    bowl[8] = "pineapple";
    bowl[9] = "plum";
}



public Fruit(int x)
{
    bowl = new String[] {"apple", "banana", "lemon", "lime", "mango"};
}


public void display()
{
    for (int x = 0; x < bowl.length; x++)
        System.out.println(bowl[x]);
}

public void deleteFruit(String del)
{
    int index = -1;
    for(int i=0; i< bowl.length; i++)
        if (bowl[i].equals(del))
            index = i;
    if (index ==-1)
        System.out.println("Not in the list");
    else
    {
        for (int i = index; i< bowl.length -1; i++)
            bowl[i] = bowl [i+1];
        String[] temp = new String[bowl.length-1];
        for (int i = 0; i < temp.length; i++)
            temp[i]= bowl [i];
        bowl = temp;
        System.out.println("item deleted");
    }
public void addFruit(String other)
{

}
}

Answer 1

这不是最有效的解决方案，但它确实有效。

public void addFruit(String other) {
    String[] res = new String[bowl.length + 1];
    for(int i = 0; i < bowl.length; i++) {
        res[i] = bowl[i];
    }
    res[res.length - 1] = other;
    bowl = res;
}