摘要：public class AA extends JFrame{public AA(){JFrame jf1=new JFrame ("Hello");jf1.setLayout(new FlowLayout());jf1.getContentPane().add(new JButton("姓名")) 阅读全文

摘要：package DYL; import java.awt.Container; import javax.swing.JButton; import javax.swing.JFrame; import javax.swing.WindowConstants; public class DYL ex 阅读全文

摘要：package shiyan;import java.awt.*;import javax.swing.*;import java.awt.event.*; public class Jisuanqi extends Frame implements ActionListener{public Ji 阅读全文

摘要：package jisuanqi;import java.awt.*;import java.awt.event.ActionEvent;import java.awt.event.ActionListener; import javax.swing.JButton;import javax.swi 阅读全文