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Why do I keep getting Java.Lang.NullPointerException


You should try this:

private void render(){
    BufferStrategy bs = this.getBufferStrategy();
    if(bs == null){
        this.createBufferStrategy(3);
        bs = this.getBufferStrategy(); // reassign
bs
    }

    Graphics g = bs.getDrawGraphics();

    g.dispose();
    bs.show();
}

Categories : Java

Related to : Why do I keep getting Java.Lang.NullPointerException
The NullPointerException
You are getting the nullPointerException because pm in: PackageManager pm = myContext.getPackageManager(); is returning null. Without seeing how you get your context, it's hard to say why sometimes it's null and sometimes it's not.

Categories : Android
NullPointerException when trying to setText
Try: TextView textView = (TextView) rowView.findViewById(android.R.id.text1); Use findViewById to get views.

Categories : Android
HW with exception (NullPointerException)
You never initialze the 2nd dimineion of your code array, and so it remains null, since all arrays must be initialized before you start to fill them. So do that: char[][] code = new char[w][]; for (int i = 0; i < w; i++) { // **** here **** code[i][] = new char[words[i].length()]; // ***** for (int j = 0; j < words[i].length(); j++) { code[i][j] = words[i].charAt(j);

Categories : Java
NullPointerException on ActionBar
Since you're using ActionBarActivity (from support library), you need to invoke the support method: getSupportActionBar(); Edit-Reply to the comment: In the same way you did: getSupportActionBar().setCustomView(view, new ActionBar.LayoutParams(ViewGroup .LayoutParams.MATCH_PARENT, ViewGroup.LayoutParams.MATCH_PARENT)); However make sure to import only the ActionBar from the support

Categories : Java
NullPointerException on Cordova app
Error was really not explicit but i found the problem : I use AngularJs in my cordova app and tried to display this next line : <img src="{{profil.selection ? profil.template.selectedPicture : profil.template.picture}}"/> BUT : "Using Angular markup like {{hash}} in a src attribute doesn't work right" from the AngularJS documentation : https://docs.angularjs.org/api/ng/direct

Categories : Android
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