Preprocessing

Question

I am creating a MIDlet that uses the location API. The problem is that when i install it on a phone that does not support JSR179 (Location API), i get the NoClassDefFoundError. My code is as follows
import javax.microedition.location.*;
public class MyLocationListener implements LocationListener {
    public MobileApplication app;
    public MyLocationListener(MobileApplication app) {
        this.app = app;
    public void locationUpdated(LocationProvider provider, Location location) {
        QualifiedCoordinates qc = location.getQualifiedCoordinates();
        app.updateCoordinates(qc.getLongitude(), qc.getLatitude());
    public void providerStateChanged(LocationProvider provider, int newState){
}I try putting this preprocessor directives
//#ifdef JSR179
import javax.microedition.location.*;
//#endif
//#ifdef JSR179
public class MyLocationListener implements LocationListener {
    public MobileApplication app;
    public MyLocationListener(MobileApplication app) {
        this.app = app;
    public void locationUpdated(LocationProvider provider, Location location) {
        QualifiedCoordinates qc = location.getQualifiedCoordinates();
        app.updateCoordinates(qc.getLongitude(), qc.getLatitude());
    public void providerStateChanged(LocationProvider provider, int newState){
//#endifbut when i build the project using an emulator that does not support the JSR179 API (for example disable it from "Optional Packages" from the project's emulator properties in NetBeans) i get the error
package javax.microedition.location does not exist
Will this still work on a mobile that doesn't support the Location API if i run the MIDlet using an emulator that does? Or is this a wrong way i am using the preprocessor?

Answer 1

...is this a wrong way i am using the preprocessor?As far as I know, there is no preprocessor in Java (as opposed to say, C).
So, to me it looks like the very idea to use preprocessor is a +"wrong way"+ in Java.