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getting null pointer

 
sam liya
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this is my main class


this is online class


when i click the links it gives this error


but whe i print position it gives values.
so how it gives null pointer?
 
Ulf Dittmer
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Which object is null?
 
sam liya
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I also need to know ?
 
Ulf Dittmer
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We are not in a position to figure that out - you are. For example, you can print relevant values to the Log.

Also, in which line does the exception occur, meaning, which one is line 52 - the one labelled 52 in your post?
 
sam liya
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It gives null pointer in this line

Toast.makeText(getApplicationContext(), "AAAAAAAAAAAAAAAAAAAAA "+position, Toast.LENGTH_LONG).show();

but the position value is not null.
 
Ulf Dittmer
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What does getApplicationContext() return?

What does Toast.makeText(...) return?
 
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