我只是想让文本字段不可见,直到我单击其中一个编号按钮。忽略我糟糕的间距和缺乏评论,因为这是一个早期的草稿。文本字段称为 inputField1,我希望在单击标记为 1 的按钮时将其设置为可见。谢谢
import java.lang.String.*;
import java.lang.Exception.*;
import java.util.EventObject;
import javax.swing.*;
import java.awt.*;
import java.awt.event.*;
public class Airplanes extends JFrame implements ActionListener {
private static final int FRAME_WIDTH = 330;
private static final int FRAME_HEIGHT = 300;
private static final int FRAME_X_ORIGIN = 150;
private static final int FRAME_Y_ORIGIN = 300;
private static final int BUTTON_WIDTH = 50;
private static final int BUTTON_HEIGHT = 30;
private JTextField inputLine1;
private JButton oneButton;
private JButton twoButton;
private JButton threeButton;
private JButton fourButton;
private JButton fiveButton;
private JButton sixButton;
private JButton sevenButton;
private JButton eightButton;
private JButton nineButton;
private JButton tenButton;
private JButton elevenButton;
private JButton twelveButton;
public static void main(String[] args) {
Airplanes airplanes = new Airplanes();
airplanes.setVisible(true);
}
@SuppressWarnings("null")
public Airplanes() {
Container contentPane;
setSize(FRAME_WIDTH, FRAME_HEIGHT);
setResizable(false);
setTitle("Island Airways");
setLocation(FRAME_X_ORIGIN, FRAME_Y_ORIGIN);
contentPane = getContentPane();
contentPane.setLayout(null);
contentPane.setBackground(Color.white);
oneButton = new JButton("1");
oneButton.setBounds(10, 100, BUTTON_WIDTH, BUTTON_HEIGHT);
contentPane.add(oneButton);
twoButton = new JButton("2");
twoButton.setBounds(10, 140, BUTTON_WIDTH, BUTTON_HEIGHT);
contentPane.add(twoButton);
threeButton = new JButton("3");
threeButton.setBounds(60, 100, BUTTON_WIDTH, BUTTON_HEIGHT);
contentPane.add(threeButton);
fourButton = new JButton("4");
fourButton.setBounds(60, 140, BUTTON_WIDTH, BUTTON_HEIGHT);
contentPane.add(fourButton);
fiveButton = new JButton("5");
fiveButton.setBounds(110, 100, BUTTON_WIDTH, BUTTON_HEIGHT);
contentPane.add(fiveButton);
sixButton = new JButton("6");
sixButton.setBounds(110, 140, BUTTON_WIDTH, BUTTON_HEIGHT);
contentPane.add(sixButton);
sevenButton = new JButton("7");
sevenButton.setBounds(160, 100, BUTTON_WIDTH, BUTTON_HEIGHT);
contentPane.add(sevenButton);
eightButton = new JButton("8");
eightButton.setBounds(160, 140, BUTTON_WIDTH, BUTTON_HEIGHT);
contentPane.add(eightButton);
nineButton = new JButton("9");
nineButton.setBounds(210, 100, BUTTON_WIDTH, BUTTON_HEIGHT);
contentPane.add(nineButton);
tenButton = new JButton("10");
tenButton.setBounds(210, 140, BUTTON_WIDTH, BUTTON_HEIGHT);
contentPane.add(tenButton);
elevenButton = new JButton("11");
elevenButton.setBounds(260, 100, BUTTON_WIDTH, BUTTON_HEIGHT);
contentPane.add(elevenButton);
JButton twelveButton = new JButton("12");
twelveButton.setBounds(260, 140, BUTTON_WIDTH, BUTTON_HEIGHT);
contentPane.add(twelveButton);
JButton firstClass = new JButton("First Class");
firstClass.setBounds(50, 30, 100, 30);
contentPane.add(firstClass);
JButton coach = new JButton("Coach");
coach.setBounds(175, 30, 100, 30);
contentPane.add(coach);
inputLine1 = new JTextField();
inputLine1.setBounds(70, 200, 135, 30);
contentPane.add(inputLine1);
inputLine1.setVisible(false);
}
public void actionPerformed(ActionEvent event) {
if (event.getSource() instanceof JButton) {
JButton clickedButton = (JButton) event.getSource();
String buttonText = clickedButton.getText();
if (buttonText.equals("First Class")) {
inputLine1.setVisible(true);
if (buttonText.equals("1")) {
}
}
}
}
}