以下示例展示了如何在基于swing的应用程序中使用确定按钮显示简单的消息警报。
使用以下API -
JOptionPane()
- 创建标准对话框。JOptionPane.showMessageDialog()
- 显示简单的警报消息。
示例
package com.yiibai.swingdemo;
import java.awt.BorderLayout;
import java.awt.FlowLayout;
import java.awt.LayoutManager;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.JOptionPane;
import javax.swing.JPanel;
public class SwingTester {
public static void main(String[] args) {
createWindow();
}
private static void createWindow() {
JFrame frame = new JFrame("Swing确定按钮显示消息提示(yiibai.com)");
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
createUI(frame);
frame.setSize(560, 200);
frame.setLocationRelativeTo(null);
frame.setVisible(true);
}
private static void createUI(final JFrame frame) {
JPanel panel = new JPanel();
LayoutManager layout = new FlowLayout();
panel.setLayout(layout);
JButton button = new JButton("点击我!");
button.addActionListener(new ActionListener() {
@Override
public void actionPerformed(ActionEvent e) {
JOptionPane.showMessageDialog(frame, "确定按钮消息提示~");
}
});
panel.add(button);
frame.getContentPane().add(panel, BorderLayout.CENTER);
}
}
执行上面示例代码,得到以下结果: