}
//Get parameter info
public String[][] getParameterInfo() {
return null;
}
//Main method
public static void main(String[] args) {
LockUnlock applet = new LockUnlock();
applet.isStandalone = true;
JFrame frame = new JFrame();
//EXIT_ON_CLOSE == 3
frame.setDefaultCloseOperation(3);
frame.setTitle("Applet Frame");
frame.getContentPane().add(applet, BorderLayout.CENTER);
applet.init();
applet.start();
frame.setSize(400,320);
Dimension d = Toolkit.getDefaultToolkit().getScreenSize();
frame.setLocation((d.width - frame.getSize().width) / 2, (d.height - frame.getSize().height) / 2);
frame.setVisible(true);
}
//static initializer for setting look & feel
static {
try {
//UIManager.setLookAndFeel(UIManager.getSystemLookAndFeelClassName());
//UIManager.setLookAndFeel(UIManager.getCrossPlatformLookAndFeelClassName());
}
catch(Exception e) {
}
}
//Declare DataMember
int index;
//-----------------------------------------------------
JPanel contentPane;
JLabel jLabel1 = new JLabel();
JLabel jLabel2 = new JLabel();
JTextField jTextField2 = new JTextField();
JTextField jTextField1 = new JTextField();
JButton jButton1 = new JButton();
JButton jButton2 = new JButton();
JTextField jTextField3 = new JTextField();
JLabel jLabel3 = new JLabel();
//----------------------N!------------------------------
public int function(int N){
if(N==1)
return 1;
else{
return N*function(N-1);
/*不是RETURN function(N-1);
而是 N*function(N-1);*/
}
}
//-----------用递归法求一个串的全排列-----------------------
public void Arrange(String prefix,String suffix,int[] Array){
String newPrefix,newSuffix;
int numOfChars =suffix.length();
if(numOfChars==1){
Array[index]=Integer.parseInt(prefix+suffix);
index++;
}
else{
for(int i=1; i<=numOfChars;i++){
newSuffix=suffix.substring(1,numOfChars);
newPrefix=prefix+suffix.charAt(0);
Arrange(newPrefix,newSuffix,Array);
suffix=newSuffix+suffix.charAt(0);







