how to run kvm application
a sample, the code is following:
import javax.microedition.lcdui.*;
import javax.microedition.midlet.*;
public class ListDemo extends MIDlet {
private Display display;
private intmode = List.IMPLICIT;
private Command exitCommand = new Command( "Exit",
Command.SCREEN, 2 );
private Command selectCommand = new Command( "Select",
Command.OK, 1 );
private Command nextCommand = new Command( "Next",
Command.SCREEN, 2 );
public ListDemo(){
}
protected void destroyApp( boolean unconditional )
throws MIDletStateChangeException {
exitMIDlet();
}
protected void pauseApp(){
}
protected void startApp() throws
MIDletStateChangeException {
if( display == null ){ // first time called...
initMIDlet();
}
}
private void initMIDlet(){
display = Display.getDisplay( this );
display.setCurrent( new SampleList( mode ) );
}
public void exitMIDlet(){
notifyDestroyed();
}
public static final String[] items = {
"First", "Second", "Third", "Fourth"
};
class SampleList extends List implements
CommandListener {
private int mode;
SampleList( int mode ){
super( "", mode, items, null );
addCommand( exitCommand );
addCommand( selectCommand );
addCommand( nextCommand );
setCommandListener( this );
switch( mode ){
case IMPLICIT:
setTitle( "Implicit" );
break;
case EXCLUSIVE:
setTitle( "Exclusive" );
break;
case MULTIPLE:
setTitle( "Multiple" );
break;
}
this.mode = mode;
}
public void commandAction( Command c,
Displayable d ){
if( c == exitCommand ){
exitMIDlet();
} else if( c == selectCommand ){
showSelection( false );
} else if( c == SELECT_COMMAND ){
showSelection( true );
} else if( c == nextCommand ){
if( mode == List.IMPLICIT ){
mode = List.EXCLUSIVE;
} else if( mode == List.EXCLUSIVE ){
mode = List.MULTIPLE;
} else {
mode = List.IMPLICIT;
}
display.setCurrent( new SampleList(
mode ) );
}
}
private void showSelection( boolean implicit ){
Alert alert = new Alert(
implicit ? "Implicit Selection"
: "Explicit Selection" );
StringBuffer buf = new StringBuffer();
if( mode == MULTIPLE ){
boolean[] selected = new boolean[ size() ];
getSelectedFlags( selected );
for( int i = 0; i < selected.length; ++i ){
if( selected ){
if( buf.length() == 0 ){
buf.append(
"You selected: " );
} else {
buf.append( ", " );
}
buf.append( getString( i ) );
}
}
if( buf.length() == 0 ){
buf.append( "No items are
selected." );
}
} else {
buf.append( "You selected " );
buf.append( getString(
getSelectedIndex() ) );
}
alert.setString( buf.toString() );
alert.setTimeout( Alert.FOREVER );
display.setCurrent( alert,
display.getCurrent() );
}
}
}
I use the following commands on win32 platform:
1. java ListDemo.java
2. preverify -classpath . ListDemo
3. kvm -classpath . ListDemo
the running results:
ALERT: Unable to load class ListDemo$SampleList
Why? Who can give me a sample run kvm.exe
