java.lang.NullPointerException

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  • java.lang.NullPointerException: Attempt to invoke interface method 'void queendevelopers.com.communicate.MyFragmentInterface.setResult(java.lang.String)' on a null object reference at queendevelopers.com.communicate.FragmentA$1.onClick(FragmentA.java:34) at android.view.View.performClick(View.java:4832) at android.view.View$PerformClick.run(View.java:19844) at android.os.Handler.handleCallback(Handler.java:739) at android.os.Handler.dispatchMessage(Handler.java:95) at android.os.Looper.loop(Looper.java:135) at android.app.ActivityThread.main(ActivityThread.java:5319) 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:1016) at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:811)
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