Which of the following factors is required to establish causality?

Question 1This is an extract from an XML layout file: 123456789<Buttonandroid:layout_width=”wrap_content”android:layout_height=”wrap_content”android:text=”click”android:id=”@+id/myButton”android:layout_alignParentTop=”true”android:layout_alignParentLeft=”true”android:layout_alignParentStart=”true”android:onClick=”go” />Which method must be defined in your activity Java code in order to display a pop-up message when this…