AndroidStudio

Watch ads activity_main.xml android:layout_height="match_parent" android:layout_width="match_parent" android:orientation="vertical" tools:context=".MainActivity" xmlns:android="http://schemas.android.com/apk/res/android" xmlns:tools="http://schemas.android.com/tools"> android:id="@+id/textView" android:layout_height="wrap_content" android:layout_margintop="40dp" android:layout_width="wrap_content" android:text="First Name:" android:textcolor="@color/black" android:textsize="20sp" android:hint="Enter First Name"

                                                 activity_main.xml  <?xml version="1.0" encoding="utf-8"?> <RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"     xmlns:tools="http://schemas.android.com/tools"     android:layout_width="match_parent"     android:layout_height="match_parent"     tools:context=".MainActivity2"> <TextView     android:id="@+id/textView"     android:layout_width="wrap_content"     android:layout_height="wrap_content"     android:layout_marginTop="40dp"     android:text="First Name:"     android:textSize="20sp"     android:textColor="@color/black"     /> <EditText     android:id="@+id/editTextTextPersonName"     android:layout_width="match_parent"     android:layout_height="wrap_content"     android:inputType="textPersonName"     android:h