java.lang.NullPointerException

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  • java.lang.NullPointerException: Attempt to invoke interface method 'int com.example.alpha.receiverserrvice.Services.Pay.pay(java.lang.String, java.lang.String, float)' on a null object reference at com.example.alpha.testpayservice.MainActivity$override.Payfor(MainActivity.java:47) at com.example.alpha.testpayservice.MainActivity$override.access$dispatch(MainActivity.java) at com.example.alpha.testpayservice.MainActivity.Payfor(MainActivity.java:0) at com.example.alpha.testpayservice.MainActivity$1$override.onClick(MainActivity.java:40) at com.example.alpha.testpayservice.MainActivity$1$override.access$dispatch(MainActivity.java) at com.example.alpha.testpayservice.MainActivity$1.onClick(MainActivity.java:0) at android.view.View.performClick(View.java:5198) at android.view.View$PerformClick.run(View.java:21147) at android.os.Handler.handleCallback(Handler.java:739) at android.os.Handler.dispatchMessage(Handler.java:95) at android.os.Looper.loop(Looper.java:148) at android.app.ActivityThread.main(ActivityThread.java:5417) at java.lang.reflect.Method.invoke(Native Method) at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:726) at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:616)
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