java.lang.NullPointerException: Attempt to invoke virtual method 'java.lang.String com.example.owner.sqlite.MyDBHandler.addStudent(com.example.owner.sqlite.Student)' on a null object reference

Stack Overflow | kunal nikam | 6 months ago
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    on null object reference error on getText() while inserting in Sqlite-Android

    Stack Overflow | 6 months ago | kunal nikam
    java.lang.NullPointerException: Attempt to invoke virtual method 'java.lang.String com.example.owner.sqlite.MyDBHandler.addStudent(com.example.owner.sqlite.Student)' on a null object reference

    Root Cause Analysis

    1. java.lang.NullPointerException

      Attempt to invoke virtual method 'java.lang.String com.example.owner.sqlite.MyDBHandler.addStudent(com.example.owner.sqlite.Student)' on a null object reference

      at com.example.owner.sqlite.MainActivity.onClick()
    2. com.example.owner
      MainActivity.onClick
      1. com.example.owner.sqlite.MainActivity.onClick(MainActivity.java:35)
      1 frame
    3. Android Platform
      Looper.loop
      1. android.view.View.performClick(View.java:4785)
      2. android.view.View$PerformClick.run(View.java:19884)
      3. android.os.Handler.handleCallback(Handler.java:739)
      4. android.os.Handler.dispatchMessage(Handler.java:95)
      5. android.os.Looper.loop(Looper.java:135)
      5 frames