java.lang.NullPointerException: Attempt to invoke interface method 'void earn.free.cashback.snapcash.MainActivity$hell.willwork()' on a null object reference

Stack Overflow | Sandeep Singh | 12 months ago
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    Calling method of Fragment from MainActivity using interface, NullPointerException

    Stack Overflow | 12 months ago | Sandeep Singh
    java.lang.NullPointerException: Attempt to invoke interface method 'void earn.free.cashback.snapcash.MainActivity$hell.willwork()' on a null object reference

    Root Cause Analysis

    1. java.lang.NullPointerException

      Attempt to invoke interface method 'void earn.free.cashback.snapcash.MainActivity$hell.willwork()' on a null object reference

      at earn.free.cashback.snapcash.MainActivity$2.onPageSelected()
    2. earn.free.cashback
      MainActivity$2.onPageSelected
      1. earn.free.cashback.snapcash.MainActivity$2.onPageSelected(MainActivity.java:152)
      1 frame
    3. Android Support v4
      ViewPager.setCurrentItem
      1. android.support.v4.view.ViewPager.dispatchOnPageSelected(ViewPager.java:1856)
      2. android.support.v4.view.ViewPager.scrollToItem(ViewPager.java:625)
      3. android.support.v4.view.ViewPager.setCurrentItemInternal(ViewPager.java:609)
      4. android.support.v4.view.ViewPager.setCurrentItemInternal(ViewPager.java:570)
      5. android.support.v4.view.ViewPager.setCurrentItem(ViewPager.java:551)
      5 frames