Java HashMap get method null pointer exception
If c is not contained in myMap, it will return null, which can’t be unboxed as a boolean. Try : Boolean b = myMap.get(c); if(b != null && b){ …
nullpointerexception
NullPointerException when Creating an Array of objects [duplicate]
You created the array but didn’t put anything in it, so you have an array that contains 5 elements, all of which are null. You could add boll[0] = new ResultList(); before the line where you set boll[0].name.
Android SDK Content Loader failing with NullPointerException
The issue is in the your-avd-name.ini that is located at …\<user-profile>\.android on your Windows machine (if you’re Windows user). When any error occurs during the avd.ini parser, the Google ADT plugin tries to access a map that is null. The workaround is to delete the offending .ini file and recreate your avd(s). This information was … Read more
Caused by java.lang.NullPointerException: Attempt to invoke virtual method ‘int android.graphics.Bitmap.getWidth()’ on a null object reference
The problem you are facing is that you are trying to getWidth() on your unscaledBitmap in the createScaledBitmap function. Clearly, your unscaledBitmap is null sometimes; and calling getWidth() is causing the Null Pointer exception. The root cause is that decodeResource is returning you a null for whatever reason. The reasons can include – No read … Read more