Swing—弹窗
Swing—弹窗
JDialog,用来被弹出,默认就有关闭事件
package com.deng.lesson04;
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import javax.swing.;
import java.awt.;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
//主窗口
public class DialogDemo extends JFrame {
public DialogDemo() {
this.setVisible(true);
this.setSize(700, 500);
this.setDefaultCloseOperation(WindowConstants.EXIT_ON_CLOSE);
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//JFrame 放东西 容器
Container container = this.getContentPane();
//绝对布局
container.setLayout(null);
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//按钮
JButton button = new JButton("点击弹出一个对话框");//创建
button.setBounds(100, 100, 200, 110);
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//点击这个按钮的时候,弹出一个窗口
button.addActionListener(new ActionListener() {
@Override
public void actionPerformed(ActionEvent e) {
//弹窗
new MyDialogDemo();
}
});
container.add(button);
}
public static void main(String[] args) {
new DialogDemo();
}
}
//弹窗的窗口
class MyDialogDemo extends JDialog{
public MyDialogDemo() {
this.setVisible(true);
this.setBounds(100,100,500,500);
//this.setDefaultCloseOperation(WindowConstants.EXIT_ON_CLOSE);
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Container container = this.getContentPane();
container.setLayout(null);
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container.add(new Label("欢迎光临"));
}
}