复数计算器

import java.awt.*; import java.awt.event.*; import javax.swing.*; class FushuFrame extends JFrame{ public FushuFrame(){ setTitle("复数计算器"); setSize(350,250); Container contentPane = getContentPane(); KEYPanel pane=new KEYPanel(); contentPane.add(pane); } class KEYPanel extends JPanel{ public JTextField tf1; public JTextField tf2; public JTextField tf3; public JTextField tf4; public JTextField tf5; public JTextField tf6; public JTextField mingzi;