从ArrayList到JComboBox

Question

我有一个赋值集，我需要将一个JComboBox从Games输入到ArrayList中填充，现在我已经完成了所有设置，除了整个添加到arraylist之外，我只想让输入正常工作。它加载，但它打印数组地址，而不是字符串，有没有办法解决这个问题？我的代码如下。请注意，这不是全部，这是导致我麻烦的文件，我的其他文件用于显示文件。

import javax.swing.*;
import java.awt.*;
import java.awt.event.*;

import java.io.*;
import java.util.*;

public class GameCombo extends JPanel {
  ArrayList<Game> gamesList = new ArrayList<Game>();

  //String[] games = {"", "[Halo: Reach] Xbox 360; Action; $108.00; 2;", "[Dead Space] Xbox 360; Horror; $65.00; 1;"}; 

    public GameCombo() {
      setLayout(new GridLayout(1,1,1,1));
    gamesList.add(new Game());
    gamesList.add(new Game("[Halo: Reach]", 3, 1, 108.00, 2));
    gamesList.add(new Game("[Dead Space]", 3, 2, 80.00, 1));

    JComboBox _gameBox = new JComboBox(getGames());
        add(_gameBox);
    }

    public Object[] getGames() {
        return gamesList.toArray();
    }
}

Answer 1

AKJ是对的。

import java.util.ArrayList;

import javax.swing.JComboBox;
import javax.swing.JFrame;

public class ComboTest extends JFrame {
    private ArrayList<Game> gamesList = new ArrayList<Game>();

    private class Game {
        private String title = "";

        public Game() {}

        public Game(String title, int x, int y, double z, int a) {
            this.title = title;
        }

        /********************************************************/
        /********************************************************/
        @Override
        public String toString() {
            return this.title;
        }
        /********************************************************/
        /********************************************************/
    }

    public ComboTest() {
        gamesList.add(new Game());
        gamesList.add(new Game("[Halo: Reach]", 3, 1, 108.00d, 2));
        gamesList.add(new Game("[Dead Space]", 3, 2, 80.00d, 1));
        add(getCombo());
        setSize(320, 80);
        setVisible(true);
    }

    private JComboBox getCombo() {
        JComboBox box = new JComboBox(getGames());
        return box;
    }

    private Object[] getGames() {
        return gamesList.toArray();
    }

    public static void main(String[] args) {
        new ComboTest();
    }
}

Answer 2

您需要将toString（）方法添加到Game类。或者在getGames中创建一个新数组并用游戏名称填充它。