Question

大侠们!!怎样在java文本框中触发回车事件???

无法实现在文本框中触发回车事件,即按一下回车后,能够触发某个事件!!那位指点一下小弟啊!!在此谢过!!

Answer 1

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

public class Program extends JFrame{
    public Program() {
        initComponets();
    }
    
    protected void initComponets(){
        Action action=new AbstractAction() {
            @Override
            public void actionPerformed(ActionEvent e) {
                JOptionPane.showMessageDialog(null, "触发回车事件","提示",JOptionPane.PLAIN_MESSAGE);
            }
        };
        
        JTextField jTextField=new JTextField(10);
        jTextField.addActionListener(action);
        getContentPane().setLayout(new FlowLayout());
        getContentPane().add(jTextField);
        setVisible(true);
        setDefaultCloseOperation(EXIT_ON_CLOSE);
        setBounds(50,50,200,200);
    }
    
    public static void main(String[] args) {
        new Program();
    }
}

Answer 2

添加KeyAdapter，重载keyTyped函数，函数原形：
void keyTyped(KeyEvent e)
KeyEvent有函数getKeyChar()获得键盘输入的字符