编写程序,在屏幕上显示一个带标题的窗口,并添加一个按钮,当用户单击按钮时,弹出对话框,显示用户单击了按钮。
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- danielinbiti 2015-07-04 12:55关注
import java.awt.Frame; import java.awt.Graphics; import java.awt.GridLayout; import java.awt.event.ActionEvent; import java.awt.event.ActionListener; import javax.swing.ImageIcon; import javax.swing.JButton; import javax.swing.JFrame; import javax.swing.JOptionPane; public class GameFrame extends JFrame{ public void launchFrame(){ JButton button = new JButton("按钮"); this.setSize(200, 200); this.setTitle("测试"); this.getContentPane().add(button); this.setLocation(200, 100); this.setResizable(false); this.setVisible(true); button.addActionListener(new ActionListener() { @Override public void actionPerformed(ActionEvent e) { JOptionPane.showMessageDialog(null, "用户单击了按钮", "INFORMATION_MESSAGE",JOptionPane.INFORMATION_MESSAGE); } }); } public static void main(String[] args) { new GameFrame().launchFrame(); } }
解决 2无用 1