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via Stack Overflow by Akhilesh Chobey
, 1 year ago
Attempt to invoke virtual method 'boolean com.akhileshchobey.mynotes.DatabaseOperations.insertData(java.lang.String)' on a null object reference
java.lang.NullPointerException: Attempt to invoke virtual method 'boolean com.akhileshchobey.mynotes.DatabaseOperations.insertData(java.lang.String)' on a null object reference	at com.akhileshchobey.mynotes.Main2Activity.onTextChanged(Main2Activity.java:39)	at android.widget.TextView.sendOnTextChanged(TextView.java:7746)	at android.widget.TextView.handleTextChanged(TextView.java:7806)	at android.widget.TextView$ChangeWatcher.onTextChanged(TextView.java:9724)	at android.text.SpannableStringBuilder.sendTextChanged(SpannableStringBuilder.java:964)	at android.text.SpannableStringBuilder.replace(SpannableStringBuilder.java:515)	at android.text.SpannableStringBuilder.replace(SpannableStringBuilder.java:454)	at android.text.SpannableStringBuilder.replace(SpannableStringBuilder.java:33)	at android.view.inputmethod.BaseInputConnection.replaceText(BaseInputConnection.java:685)	at android.view.inputmethod.BaseInputConnection.setComposingText(BaseInputConnection.java:445)	at com.android.internal.view.IInputConnectionWrapper.executeMessage(IInputConnectionWrapper.java:340)	at com.android.internal.view.IInputConnectionWrapper$MyHandler.handleMessage(IInputConnectionWrapper.java:78)	at android.os.Handler.dispatchMessage(Handler.java:102)	at android.os.Looper.loop(Looper.java:135)	at android.app.ActivityThread.main(ActivityThread.java:5264)	at java.lang.reflect.Method.invoke(Native Method)	at java.lang.reflect.Method.invoke(Method.java:372)	at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:900)	at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:695)