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

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via Stack Overflow by kunal nikam
, 1 year ago
Attempt to invoke virtual method 'java.lang.String com.example.owner.sqlite.MyDBHandler.addStudent(com.example.owner.sqlite.Student)' on a null object reference
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(MainActivity.java:35)
at android.view.View.performClick(View.java:4785)
at android.view.View$PerformClick.run(View.java:19884)
at android.os.Handler.handleCallback(Handler.java:739)
at android.os.Handler.dispatchMessage(Handler.java:95)
at android.os.Looper.loop(Looper.java:135)

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