CourtCounter

activity_main.xml

<?xml version="1.0" encoding="utf-8"?>
<android.support.constraint.ConstraintLayout
    xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    tools:context="com.example.behnj.courtcounter.MainActivity">

    <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"
        android:background="#1497d4">

    <LinearLayout
        android:layout_width="match_parent"
        android:layout_height="wrap_content">

        <LinearLayout
            android:layout_width="0dp"
            android:layout_height="wrap_content"
            android:layout_weight="1"
            android:orientation="vertical">

            <TextView
                android:layout_width="match_parent"
                android:layout_height="wrap_content"
                android:layout_marginBottom="16dp"
                android:layout_marginTop="16dp"
                android:fontFamily="sans-serif-medium"
                android:gravity="center"
                android:text="Team A"
                android:textColor="#ffffff"
                android:textSize="18sp" />

            <TextView
                android:id="@+id/team_a_score"
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:layout_gravity="center"
                android:layout_marginBottom="12dp"
                android:background="#000000"
                android:fontFamily="sans-serif"
                android:gravity="center"
                android:padding="4dp"
                android:text="0"
                android:textColor="#ff0000"
                android:textSize="30sp" />

            <TextView
                android:id="@+id/team_a_foul"
                android:layout_width="wrap_content"
                android:layout_height="match_parent"
                android:layout_gravity="center"
                android:layout_marginBottom="12dp"
                android:background="#000000"
                android:fontFamily="sans-serif"
                android:gravity="center"
                android:padding="4dp"
                android:text="0"
                android:textColor="#ff0000"
                android:textSize="20sp" />

            <Button
                android:layout_width="match_parent"
                android:layout_height="wrap_content"
                android:layout_marginBottom="8dp"
                android:layout_marginLeft="24dp"
                android:layout_marginRight="24dp"
                android:onClick="addThreeForTeamA"
                android:text="+3 Punkte" />

            <Button
                android:layout_width="match_parent"
                android:layout_height="wrap_content"
                android:layout_marginBottom="8dp"
                android:layout_marginLeft="24dp"
                android:layout_marginRight="24dp"
                android:onClick="addTwoForTeamA"
                android:text="+2 Punkte" />

            <Button
                android:layout_width="match_parent"
                android:layout_height="wrap_content"
                android:layout_marginBottom="8dp"
                android:layout_marginLeft="24dp"
                android:layout_marginRight="24dp"
                android:onClick="addOneForTeamA"
                android:text="Freiwurf" />

            <Button
                android:layout_width="match_parent"
                android:layout_height="wrap_content"
                android:layout_marginBottom="10dp"
                android:layout_marginLeft="50dp"
                android:layout_marginRight="50dp"
                android:background="#FF9800"
                android:onClick="FoulForA"
                android:text="Foul" />

        </LinearLayout>

        <LinearLayout
            android:layout_width="0dp"
            android:layout_height="wrap_content"
            android:layout_weight="1"
            android:orientation="vertical">

            <TextView
                android:layout_width="match_parent"
                android:layout_height="wrap_content"
                android:layout_marginBottom="16dp"
                android:layout_marginTop="16dp"
                android:fontFamily="sans-serif-medium"
                android:gravity="center"
                android:text="Team B"
                android:textColor="#ffffff"
                android:textSize="18sp" />

            <TextView
                android:id="@+id/team_b_score"
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:layout_gravity="center"
                android:layout_marginBottom="12dp"
                android:background="#000000"
                android:fontFamily="sans-serif"
                android:padding="4dp"
                android:text="0"
                android:textColor="#ff0000"
                android:textSize="30sp"/>

            <TextView
                android:id="@+id/team_b_foul"
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:layout_gravity="center"
                android:layout_marginBottom="12dp"
                android:background="#000000"
                android:fontFamily="sans-serif"
                android:padding="4dp"
                android:text="0"
                android:textColor="#ff0000"
                android:textSize="20sp" />

            <Button
                android:layout_width="match_parent"
                android:layout_height="wrap_content"
                android:layout_marginBottom="8dp"
                android:layout_marginLeft="24dp"
                android:layout_marginRight="24dp"
                android:onClick="addThreeForTeamB"
                android:text="+3 Punkte" />

            <Button
                android:layout_width="match_parent"
                android:layout_height="wrap_content"
                android:layout_marginBottom="8dp"
                android:layout_marginLeft="24dp"
                android:layout_marginRight="24dp"
                android:onClick="addTwoForTeamB"
                android:text="+2 Punkte" />

            <Button
                android:layout_width="match_parent"
                android:layout_height="wrap_content"
                android:layout_marginBottom="8dp"
                android:layout_marginLeft="24dp"
                android:layout_marginRight="24dp"
                android:onClick="addOneForTeamB"
                android:text="Freiwurf" />

            <Button
                android:layout_width="match_parent"
                android:layout_height="wrap_content"
                android:layout_marginBottom="10dp"
                android:layout_marginLeft="50dp"
                android:layout_marginRight="50dp"
                android:background="#FF9800"
                android:onClick="FoulForB"
                android:text="Foul" />



        </LinearLayout>

       </LinearLayout>

        <Button
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:layout_alignParentBottom="true"
            android:layout_centerHorizontal="true"
            android:onClick="ScoreReset"
            android:text="Reset"
            tools:layout_editor_absoluteX="148dp"
            tools:layout_editor_absoluteY="0dp" />

    </RelativeLayout>

</android.support.constraint.ConstraintLayout>

MainActivity.java

package com.example.behnj.courtcounter;

import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.view.View;
import android.widget.TextView;

public class MainActivity extends AppCompatActivity {

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
    }

    int scoreTeamA = 0;
    int scoreTeamB = 0;
    int foulA = 0;
    int foulB = 0;


    /**
     * Increase the score for Team A by 1 point.
     */
    public void addOneForTeamA(View v) {
        scoreTeamA = scoreTeamA + 1;
        displayForTeamA(scoreTeamA)
        ;
    }

    /**
     * Increase the score for Team A by 2 points.
     */
    public void addTwoForTeamA(View v) {
        scoreTeamA = scoreTeamA + 2;
        displayForTeamA(scoreTeamA);
    }

    /**
     * Increase the score for Team A by 3 points.
     */
    public void addThreeForTeamA(View v) {
        scoreTeamA = scoreTeamA + 3;
        displayForTeamA(scoreTeamA);
    }

    /**
     * Displays the given score for Team A.
     */
    public void displayForTeamA(int score) {
        TextView scoreView = (TextView) findViewById(R.id.team_a_score);
        scoreView.setText(String.valueOf(score));
    }

    /**
     * Increase the score for Team B by 1 point.
     */


    public void addOneForTeamB(View v) {
        scoreTeamB = scoreTeamB + 1;
        displayForTeamB(scoreTeamB)
        ;
    }

    /**
     * Increase the score for Team B by 2 points.
     */
    public void addTwoForTeamB(View v) {
        scoreTeamB = scoreTeamB + 2;
        displayForTeamB(scoreTeamB);
    }

    /**
     * Increase the score for Team B by 3 points.
     */
    public void addThreeForTeamB(View v) {
        scoreTeamB = scoreTeamB + 3;
        displayForTeamB(scoreTeamB);
    }

    /**
     * Displays the given score for Team B.
     */
    public void displayForTeamB(int score) {
        TextView scoreView = (TextView) findViewById(R.id.team_b_score);
        scoreView.setText(String.valueOf(score));
    }

    /**
     * Resets the points for both teams
     */
    public void ScoreReset(View v) {
        scoreTeamB = 0;
        scoreTeamA = 0;
        foulB = 0;
        foulA = 0;
        displayForTeamAFouls(foulA);
        displayForTeamBFouls(foulB);
        displayForTeamB(scoreTeamB);
        displayForTeamA(scoreTeamA);
    }

    /**
     * Add one faul to the team A
     */
    public void FoulForA(View v) {
        foulA = foulA + 1;
        displayForTeamAFouls(foulA);
    }

    /**
     * Displays the given fauls for team A
     */
    public void displayForTeamAFouls(int score) {
        TextView scoreView = (TextView) findViewById(R.id.team_a_foul);
        scoreView.setText(String.valueOf(score));
    }

    /**
     * Add one faul to the team B
     */
    public void FoulForB(View v) {
        foulB = foulB + 1;
        displayForTeamBFouls(foulB);
    }

    /**
     * Displays the given fauls for team B
     */

    public void displayForTeamBFouls(int score) {
        TextView scoreView = (TextView) findViewById(R.id.team_b_foul);
        scoreView.setText(String.valueOf(score));
    }
}