compose 监听回车键

import java.awt.event.ActionEvent; import java.awt.event.ActionListener; import javax.swing.JFrame; import javax.swing.JTextField;

public class EnterKeyListener implements ActionListener {

private JTextField textField;

public EnterKeyListener(JTextField textField) {
    this.textField = textField;
}

@Override
public void actionPerformed(ActionEvent e) {
    String text = textField.getText();
    System.out.println("Enter key pressed: " + text);
    
    // Add your code here to handle the Enter key press event
    
    textField.setText("");
}

public static void main(String[] args) {
    JFrame frame = new JFrame("Enter Key Listener");
    JTextField textField = new JTextField();
    textField.addActionListener(new EnterKeyListener(textField));
    frame.add(textField);
    frame.setSize(300, 200);
    frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
    frame.setVisible(true);
}