摘要：
1 import java.awt.*; 2 3 import javax.swing.*; 4 class Gstudy extends JFrame{ 5 6 private int x1,y1,x2,y2; 7 private newPanel panel=new... 阅读全文
摘要：
1 class RadioHere extends JFrame implements ActionListener 2 { 3 private JTextArea ta=new JTextArea(10,20); 4 private JFileChooser jfc=new JF... 阅读全文