NullPointerException from getExtras()

android, android-intent, bundle, nullpointerexception

Solution

Replace

Bundle bundle = getIntent().getExtras();

    if (!bundle.getString("USERNAME").equals(null) && bundle.getInt("PLAYERMOVES") != 0){
        String username = bundle.getString("USERNAME");
        int playerMoves = bundle.getInt("PLAYERMOVES");
        addHighScore(username, playerMoves);

    }

with

 if (getIntent().getStringExtra("USERNAME") != null && (getIntent().getIntExtra("PLAYERMOVES", 0) != 0){
        String username = bundle.getString("USERNAME");
        int playerMoves = bundle.getInt("PLAYERMOVES");
        addHighScore(username, playerMoves);

  }

Problem

I'm creating an intent to transfer data from one activity to another like this : ``` Intent intent = new Intent(this, ActivityHighScore.class); intent.putExtra("USERNAME", username); intent.putExtra("PLAYERMOVES", playerMoves); this.startActivity(intent); ``` Then i want to check if all of this data exists as the activity starts, as it can be started from other sources without this data being set. Im using this statement: ``` Bundle bundle = getIntent().getExtras(); if (!bundle.getString("USERNAME").equals(null) && bundle.getInt("PLAYERMOVES") != 0){ String username = bundle.getString("USERNAME"); int playerMoves = bundle.getInt("PLAYERMOVES"); addHighScore(username, playerMoves); } ``` But this causes a null pointerexception and I'm entirely sure how. I thought I was getting to grips with Strings and .equals(), but I think its that... Any help would be greatly appreciated. Thanks.

Original source