Question

编辑：问题How to Get these JPanels to be Display in my JFrame的扩展。

我正在尝试创建一个“句子随机化器”，当按下按钮时，通过循环来自单独文件夹和单独文件的不同类型的单词来创建语法正确的句子。我遇到的问题是我无法弄清楚如何在JLabel中显示检索到的单词。到目前为止，这是我的代码，以澄清：

package user_interface;

import java.awt.BorderLayout;
import java.awt.Color;
import java.awt.Component;
import java.awt.Font;
import java.util.ArrayList;

import javax.swing.BorderFactory;
import javax.swing.BoxLayout;
import javax.swing.ImageIcon;
import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JPanel;

import code.sentence;
import user_interface.RandomButtonListener;

public class sentenceUI {

    private sentence _s;
    private JButton _rando;

    public sentenceUI() {
        _s = new sentence(this);
        JFrame f = new JFrame("Ryan Ellis' Lab 9");
        f.setLayout(new BoxLayout(f.getContentPane(), BoxLayout.Y_AXIS));


        JPanel topPanel = new JPanel();
        f.add(topPanel);

        JPanel lowerPanel = new JPanel();
        f.add(lowerPanel);

        _rando = new JButton("Random Sentence");
        _rando.addActionListener(new RandomButtonListener(_s, this));
        lowerPanel.add(_rando);

        ArrayList<JLabel> _labels = new ArrayList<JLabel>();
        Color c1 = Color.BLUE;
        Color c2 = new Color( 255 - c1.getRed(), 255 - c1.getGreen(), 255 - c1.getBlue()); 
        for(int i = 0; i < 8; i++){
            JLabel _l = new JLabel();
            _l.setOpaque(true);
            _l.setBackground(c1);
            _l.setForeground(c2);
            Color temp = c1;
                    c1 = c2;
                    c2 = temp;
            _l.setBorder(BorderFactory.createEmptyBorder(0,0,8,5));
            _l.setFont(new Font("Comic Sans", Font.BOLD, 18));
        topPanel.add(_l);
        }

        ArrayList<String> _slst = new ArrayList<String>();
            _slst.add("WordLists/adjectives.txt");
            _slst.add("WordLists/adverbs.txt");
            _slst.add("WordLists/determiners.txt");
            _slst.add("WordLists/nouns.txt");
            _slst.add("WordLists/verbs.txt");

        ArrayList<ArrayList<String>> list = new ArrayList<ArrayList<String>>();
        list.add(_slst);
            int i = 0;
            list.get(i % 5);



        f.setVisible(true);
        f.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
        f.pack();

    }

    private void createRButton(String string, JPanel lowerPanel) {
        createRButton("Random", lowerPanel);


    }
}

Answer 1

您需要将unable to parse template class, cannot create class-file存储在某种列表中，以便稍后在生成随机句子后检索其实例。

然后你可以做

JLabel

在添加完所有单词后，您可能需要重新绘制JPanel（使用jpanel.repaint（））来更新JLabel的显示。

如何让我的JLabel显示字符串存储在我的ArrayList中？

1 个答案: