java.lang.NullPointerException

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    • java.lang.NullPointerException: Attempt to invoke virtual method 'android.database.sqlite.SQLiteDatabase android.content.Context.openOrCreateDatabase(java.lang.String, int, android.database.sqlite.SQLiteDatabase$CursorFactory, android.database.DatabaseErrorHandler)' on a null object reference at com.example.eric.myapp6.database.DataBase.setUser_Exam(DataBase.java:97) at com.example.eric.myapp6.adapter.sample_test_vpadapter$2.onClick(sample_test_vpadapter.java:85)
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