我想做一个窗口,当你按下按钮时,它会在文本区显示不同语言的短语“我爱你”。我只是不知道如何连接按钮中的文本区域。我有三节课。我尝试了很多我可以思考的方法,我也搜索了与此相关的东西,但我找不到任何有用的
import javax.swing.JFrame;
import javax.swing.SwingUtilities;
public class MainClass {
public static void main(String[] args) {
SwingUtilities.invokeLater(new Runnable() {
public void run() {
new MainFrame();
}
});
}
}
import java.awt.BorderLayout;
import java.awt.FlowLayout;
import javax.swing.JFrame;
import javax.swing.JScrollPane;
import javax.swing.JTextArea;
public class MainFrame extends JFrame {
private ToolBar Tulbar = new ToolBar();
private JTextArea textArea = new JTextArea();
public MainFrame() {
super("This window loves you");
setLayout(new BorderLayout());
add(Tulbar, BorderLayout.NORTH);
add(new JScrollPane(textArea), BorderLayout.CENTER);
setSize(600,600);
setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
setVisible(true);
}
}
import java.awt.FlowLayout;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import javax.swing.JButton;
import javax.swing.JPanel;
import javax.swing.JTextArea;
public class ToolBar extends JPanel{
private JButton Button1 = new JButton("Korean");
private JButton Button2 = new JButton("Japanese");
private JButton Button3 = new JButton("French");
private JButton Button4 = new JButton("Italian");
private JButton Button5 = new JButton("English");
private JButton Button6 = new JButton("Tagalog");
public ToolBar() {
setLayout(new FlowLayout(FlowLayout.LEFT));
//added buttons
add(Button1);
add(Button2);
add(Button3);
add(Button4);
add(Button5);
add(Button6);
}
public ToolBar(JTextArea frame) {
Button1.addActionListener(new ActionListener() {
@Override
public void actionPerformed(ActionEvent e) {
frame.append("Saranghae");
}
});
Button2.addActionListener(new ActionListener() {
@Override
public void actionPerformed(ActionEvent e) {
frame.append("Aishiteru");
}
});
Button3.addActionListener(new ActionListener() {
@Override
public void actionPerformed(ActionEvent e) {
frame.append("Je t\'aime");
}
});
Button4.addActionListener(new ActionListener() {
@Override
public void actionPerformed(ActionEvent e) {
frame.append("Ti\'amo");
}
});
Button5.addActionListener(new ActionListener() {
@Override
public void actionPerformed(ActionEvent e) {
frame.append("I Love You");
}
});
Button4.addActionListener(new ActionListener() {
@Override
public void actionPerformed(ActionEvent e) {
frame.append("Mahal Kita");
}
});
}
}
1条答案
按热度按时间3vpjnl9f1#
既然你打电话来
Button1.addActionListener
在public ToolBar(JTextArea frame)
构造函数,您应该调用此构造函数来调用其中的代码。但是你却在召唤public ToolBar()
建造师。要解决此问题,请执行以下操作:
你应该写:
而且在
ToolBar
修复构造函数,而不是:你应该写:
或
请学习java命名约定并一直使用它。你可能不认为这很重要,但我保证这会让你避免犯愚蠢的错误,也会让你节省时间去改正错误。