Question

java中如何在一个窗口已经有一个按钮的情况下，另外再加加一个按钮拜托各位大神

Answer 1

import java.awt.event.ActionEvent; import java.awt.event.ActionListener; import javax.swing.JButton; import javax.swing.JFrame; public class Frame1 extends JFrame { private static final long serialVersionUID = 1L; public static void main(String args[]) { try { Frame1 frame = new Frame1(); frame.setVisible(true); } catch (Exception e) { e.printStackTrace(); } } public Frame1() { super(); getContentPane().setLayout(null); setBounds(100, 100, 300, 300); setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); JButton btn = new JButton(); btn.addActionListener(new ActionListener() { public void actionPerformed(ActionEvent e) { new Frame2(); } }); btn.setText("OpenFrame2"); btn.setBounds(92, 107, 106, 26); getContentPane().add(btn); } } ============================================= import javax.swing.JFrame; public class Frame2 extends JFrame { private static final long serialVersionUID = 1L; public Frame2() { super(); setTitle("Frame2"); setBounds(100, 100, 215, 99); setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); setVisible(true); } }