Bother everybody to help me see, I think another window click on the Settings button to set the alarm clock time, but running like this shows nothing

 
import java.awt.*; 
import java.awt.event.*; 
import javax.swing.*; 

Public class Clock extends JFrame {

Public Graphics mg; 
JButton set, ok; 
JLabel label, label1; 
JFrame frame1 frame2; 
JTextField time1, time2; 
Int a=0, b=0;//get string in the input box 

Public Clock () {
SetDefaultCloseOperation (EXIT_ON_CLOSE); 
Frame1=new JFrame (" clock "); 
Frame1. SetSize (300300); 
Frame1. SetLocation (600250); 
The set=new JButton (" set "); 
Mg=this. GetGraphics (); 
Add (set); 
Set. SetLocation (10, 5);//set button location, size, 
Frame1. SetVisible (true); 
Set. AddActionListener (new Alarm ()); 
} 

The class Alarm implements ActionListener {
Public void actionPerformed (an ActionEvent e) {
CloseThis (frame1); 
Frame2=new JFrame (" set "); 
Frame2. SetSize (200200); 
Frame2. SetLocation (600250); 
Ok=new JButton (" ok "); 
Label=new JLabel (" set the alarm clock time: "); 
Label1=new JLabel (" : "); 
Time1=time2=new JTextField (); 
Add (label); Add (label1); 
Add (time1); Add (time2); Add (ok); 
Label. SetLocation (10, 10); 
Time1. SetBounds (20, 10, 10, 5); 
Time2. SetBounds (20, 30, 10, 5); 
Label1. SetLocation (20, 20); 
Ok. SetLocation (40, 30); 
Ok. AddActionListener (new Back ()); 
Frame2. SetVisible (true); 
A=Integer. ParseInt (time1. GetText ()); 
B=Integer. ParseInt (time2. GetText ()); 
} 
} 

The class Back implements ActionListener {
Public void actionPerformed (an ActionEvent e) {
CloseThis (frame2); 
Frame1. SetVisible (true); 
} 
} 

Public void paint (Graphics mg) {
=30 int hh=16, mm, ss=0;//test, temporarily didn't write the code for current time 
If (a==hh& & B==mm& & Ss==0)//setting time is the same as the current time 
JOptionPane. ShowMessageDialog (this, "time's up!" "Alarm clock", JOptionPane. INFORMATION_MESSAGE); 
} 

Public void closeThis (JFrame frame) {
Frame. The dispose (); 
} 

Public static void main (String [] args) {
The new Clock (); 
} 

}