Android Development for Beginners : Court Counter - Setting up the Methods Mohanad

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"
    android:id="@+id/activity_main"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:orientation="vertical"
    tools:context="com.example.android.courtcounter.MainActivity">

<TextView
    android:layout_width="match_parent"
    android:layout_height="wrap_content"
    android:text="Team A"
    android:gravity="center_horizontal"
    android:padding="4dp"/>

<TextView
    android:id="@+id/team_a_score"
    android:layout_width="match_parent"
    android:layout_height="wrap_content"
    android:text="0"
    android:gravity="center_horizontal"
    android:padding="4dp"/>

    <Button
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:text="+3 Points"
        android:layout_margin="8dp"
        android:onClick="addThreeTeamA"/>

    <Button
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:text="+2 Points"
        android:layout_margin="8dp"
        android:onClick="addTowTeamA"/>

    <Button
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:text="Free Throw"
        android:layout_margin="8dp"
        android:onClick="addOneTeamA"/>

</LinearLayout>