Android Fatal Exception Null Pointer Exception

Question

Hey I am new at android developing, and I am having a big problem with my application but I can't find the error, can someone help me?

I am getting a null pointer exeption.

MainActivity.java: http://www.codeshare.io/ywC71
ApiConnector.java: http://www.codeshare.io/u6FVk

Error: enter image description here

I don't know what I did wrong please help me, thanks, cheers.

Add you code in the question and not as link, if the link becomes invalid, question will also become invalid here — Fahim
– Fahim, Commented Mar 3, 2015 at 14:55

Yash Sampat · Accepted Answer · 2015-03-03 14:51:12Z

4

Your jsonArray object is null. Check its value where you are getting it from. And write your loop like this:

if(jsonArray != null){
    for(int i = 0; i < jsonArray.length ; i++)
         .....

answered Mar 3, 2015 at 14:51

Yash Sampat

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Comments

ALearner · Accepted Answer · 2015-03-03 15:08:21Z

2

Your answer is given in the log files itself. If you chek thoroughly the line is given in your logcat,

"at net.competitiveworld.sqllasttry.MainActivity.setTextToTextView(MainActivity.java:32)"

So, line number 32 of your MainActivity has the issue. If you double click on the line in Logcat, it will lead you to that particular line,

"for(int i=0; i<jsonArray.length();i++){"

And in this line, there is only one object which can be null, 'jsonArray'. So when you are trying to get length() of a null object you are getting NullPointerException. You should add check the null as ZygoteInit mentioned. You can check with the URL/server why it is giving you null value.

answered Mar 3, 2015 at 15:08

ALearner

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