Im getting error in Nullpointer Exception

Question

someone plz help me My app is getting Crash when im run the project

            if (!Constant_Api.aboutUsList.getInterstital_ad_click().equals("")) {
                Constant_Api.AD_COUNT_SHOW = Integer.parseInt(Constant_Api.aboutUsList.getInterstital_ad_click());
            }


 Caused by: java.lang.NullPointerException: Attempt to invoke virtual method 'java.lang.String com.app.singlehotel.Item.AboutUsList.getInterstital_ad_click()' on a null object reference
    at com.app.singlehotel.Activity.MainActivity$2.onSuccess(MainActivity.java:266)

add full code and where you declare getInterstital_ad_click()? — YuvrajsinhJadeja, Sep 26 '19 at 18:15
this is not how you get help on stack overflow. add the code which could be causing these issues to your original question by editing it. you need to provide as much info as possible for others to help — a_local_nobody, Sep 26 '19 at 18:26
have a look at https://stackoverflow.com/help/how-to-ask as well as https://stackoverflow.com/help/how-to-ask for more info — a_local_nobody, Sep 26 '19 at 18:27
Possible duplicate of [What is a NullPointerException, and how do I fix it?](https://stackoverflow.com/questions/218384/what-is-a-nullpointerexception-and-how-do-i-fix-it) — a_local_nobody, Sep 26 '19 at 18:27
It would also be a good time on how to learn how to use Android Studio's debugger. — Ezio, Sep 26 '19 at 18:33

Darkserum · Answer 1 · 2019-09-26T18:52:41.623

My first guess would be that it is necessary to check if the Constant_Api.aboutUsList == null before calling getInterstital_ad_click() on it.

As the stacktrace points to invoking java.lang.String com.app.singlehotel.Item.AboutUsList.getInterstital_ad_click() so I don't believe it is making it to the .equals() check.

Update: It appears the offending line is within the if statement given within the original post. It is likely that the ConstantApi.AboutUsList is null. I am not entirely sure what it is because it is an import, but my best guess is that it is null because it is being defined within the scope of the for loop.

Test ConstantApi.AboutUsList == null before trying to invoke any methods on it, namely getInterstital_ad_click(). If it is null, you need to instantiate it within the correct scope.

Ps. thanks @a-local-nobody for the comments regarding my post as well as the question and supplied code.

getting error It looks like your post is mostly code; please add some more details. — sufyan, Sep 26 '19 at 18:41

Im getting error in Nullpointer Exception

1 Answers1