How to write a better switch-case statement?

Issue

I am an Android newbie. I am trying to get listView value from another activity and show the specific location according to that value. In this situation with only for first switch-case it works perfect, but when I add the second switch-case It is showing me the result of first and second. How can I improve this code to show only one result for each switch statement.

value1 = getIntent().getIntExtra("value1", 0);
value2 = getIntent().getIntExtra("value2", 0);
value3 = getIntent().getIntExtra("value3", 0);



@Override
public void onLocationChanged(Location location) {
  mLastLocation = location;
  if (mMarker != null)

   mMarker.remove();

  latitude = location.getLatitude();
  longitude = location.getLongitude();

  LatLng latLng = new LatLng(latitude, longitude);
  MarkerOptions markerOptions = new MarkerOptions()
   .position(latLng)
   .icon(BitmapDescriptorFactory.defaultMarker(BitmapDescriptorFactory.HUE_RED));
  mMarker = mMap.addMarker(markerOptions);



  mMap.moveCamera(CameraUpdateFactory.newLatLng(latLng));
  mMap.animateCamera(CameraUpdateFactory.newLatLngZoom(latLng, 13));


  switch (value1) {

   case 0:
    mBaniaLuca = mMap.addMarker(new MarkerOptions()
     .position(BaniaLuca)
     .title("BaniaLuca"));
    mBaniaLuca.setTag(0);
    break;

   case 1:
    mBiedronka = mMap.addMarker(new MarkerOptions()
     .position(Biedronka)
     .title("Biedronka"));
    mBiedronka.setTag(0);
    break;

  }
  switch (value2) {
   case 0:
    mTARITA = mMap.addMarker(new MarkerOptions()
     .position(TARITA)
     .title("Tarita"));
    mTARITA.setTag(0);
    break;
  }
  switch (value3) {
   case 0:
    mCocon = mMap.addMarker(new MarkerOptions()
     .position(Cocon)
     .title("Cocon"));
    mCocon.setTag(0);
    break;
  }

Solution

Looks like each time you are going through the switch case, you are 'adding' a marker. Note the word 'adding'.

Prior to the switch case, statement, add code to remove all existing markers. If I understand your question right, this is the behavior you want.

Answered By - Venu G.