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java - 使用按钮将文本从文本字段移动到文本区域

转载 作者:行者123 更新时间:2023-11-29 09:14:57 25 4
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此代码编译并运行,但它不会从文本字段复制文本,然后将其放入文本区域。

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

public class NameGameFrame extends JFrame
{

static JTextField textfield = new JTextField(20);
static JTextArea textarea = new JTextArea(30,30);

public static void main( String[] args)
{

JFrame frame = new JFrame();
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
frame.setTitle("Name Game");
frame.setLocation(500,400);
frame.setSize(800,800);

JPanel panel = new JPanel(new GridBagLayout());
GridBagConstraints c = new GridBagConstraints();

JLabel label = new JLabel("Enter the Name or Partial Name to search:");
c.gridx = 0;
c.gridy = 0;
c.insets = new Insets(2,2,2,2);

panel.add(label,c);

c.gridx = 0;
c.gridy = 1;
panel.add(textarea,c);

JButton button = new JButton("Search");
c.gridx = 1;
c.gridy = 1;
panel.add(button,c);

c.gridx = 1;
c.gridy = 0;
panel.add(textfield,c);

frame.getContentPane().add(panel, BorderLayout.NORTH);
frame.pack();
frame.setVisible(true);

}
static class Action implements ActionListener
{
public void actionPerformed(ActionEvent e)
{

//This is the code that should perform the task
String name = textfield.getText();
textarea.append(name);
}
}
}

我是 Java 编程的新手,如果我的问题过于简单,我深表歉意。

最佳答案

在声明按钮之后将下面的代码附加到您的程序中
IE。 JButton button = new JButton("Search");

button.addActionListener(new ActionAdapter()
{
public void actionPerformed(ActionEvent ae)
{
textarea.setText(textfield.getText());
}
});

关于java - 使用按钮将文本从文本字段移动到文本区域,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/10059915/

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