J2ME code not running properly

In the progrram below I want that it should show filling of Gauge bars
one by one just like at the time of loading.I am using J2ME Wireless
Toolkit 1.0.4 with KToolbar.Here is the program code.So kindly help
me....

import javax.microedit ion.midlet.*;
import javax.microedit ion.lcdui.*;

public class MyGauge extends MIDlet implements CommandListener {
Display display;
int i=0;
Command start=new Command("Start" ,Command.SCREEN ,1);
Form frm=new Form("");
Gauge gauge = new Gauge ("Loading... Please wait.",false,7, 0);
public MyGauge() {
display = Display.getDisp lay(this);
frm.addCommand( start);
frm.append(gaug e);
display.setCurr ent(frm);
frm.setCommandL istener(this);
}
public void startApp() {
display.setCurr ent(frm);
}
public void destroyApp(bool ean unconditional) {
}
public void pauseApp() {
}
public void commandAction(C ommand c,Displayable d) {
try {

for (int j=0;j<=7;j++) {
gauge.setValue( j);
Thread.sleep(10 00);
}
}
catch(Interrupt edException ie){
}
}
}