Appli compteur de points Basket

java code compteur basket

package com.example.android.courtcounter;

import android.graphics.drawable.Drawable;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.view.View;
import android.widget.LinearLayout;
import android.widget.TextView;

public class MainActivity extends AppCompatActivity {
    int scoreTeamA;
    int scoreTeamB;

    /**
     * Adds 3 points to scoreTeamA
     */
    public void plus3TeamA (View view){
        scoreTeamA = scoreTeamA +3;
        displayForTeamA(scoreTeamA);
    }
    /**
     * Adds 2 points to scoreTeamA
     */
    public void plus2TeamA (View view){
        scoreTeamA = scoreTeamA +2;
        displayForTeamA(scoreTeamA);
    }
    /**
     * Adds 1 point to scoreTeamA
     */
    public void plus1TeamA (View view){
        scoreTeamA = scoreTeamA +1;
        displayForTeamA(scoreTeamA);
    }
    /**
     * Adds 3 points to scoreTeamB
     */
    public void plus3TeamB (View view){
        scoreTeamB = scoreTeamB +3;
        displayForTeamB(scoreTeamB);
    }
    /**
     * Adds 2 points to scoreTeamB
     */
    public void plus2TeamB (View view){
        scoreTeamB = scoreTeamB +2;
        displayForTeamB(scoreTeamB);
    }
    /**
     * Adds 1 point to scoreTeamA
     */
    public void plus1TeamB (View view){
        scoreTeamB = scoreTeamB +1;
        displayForTeamB(scoreTeamB);
    }
    /**
     * resets both scores to 0
     */
    public void reset (View view){
        scoreTeamA=0;
        scoreTeamB=0;
        displayForTeamA(scoreTeamA);
        displayForTeamB(scoreTeamB);
    }
    /**
     * Displays the given score for Team A.
     */
    public void displayForTeamA(int scoreTeamA) {
        TextView scoreView = (TextView) findViewById(R.id.score_team_A);
        scoreView.setText(String.valueOf(scoreTeamA));
    }
    /**
     * Displays the given score for Team B.
     */
    public void displayForTeamB(int scoreTeamB) {
        TextView scoreView = (TextView) findViewById(R.id.score_team_B);
        scoreView.setText(String.valueOf(scoreTeamB));
    }

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

}

XML compteur basket

<LinearLayout
    xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="fill_parent"
    android:layout_height="fill_parent"
    android:orientation="vertical"
    android:background="@drawable/dunkjordan"
    tools:context=".MainActivity">


    <LinearLayout
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:orientation="horizontal"
        android:layout_weight="1"
        android:layout_marginTop="12dp">

        <LinearLayout
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_weight="1"
            android:gravity="center_horizontal"
            android:orientation="vertical">

            <TextView
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:text="Team A"
                android:textSize="24sp"
                android:textColor="#ffffff"
                android:fontFamily="sans-serif"/>

            <TextView
                android:id="@+id/score_team_A"
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:text="0"
                android:textSize="54sp"
                android:padding="16dp"
                android:textColor="#ffffff"/>

            <Button
                android:id="@+id/plus_3_Team_A"
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:text="+3 points"
                android:textSize="20sp"
                android:padding="8dp"
                android:onClick="plus3TeamA"/>

            <Button
                android:id="@+id/plus_2_Team_A"
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:text="+2 points"
                android:textSize="20sp"
                android:padding="8dp"
                android:onClick="plus2TeamA"/>

            <Button
                android:id="@+id/plus_1_Team_A"
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:text="Free throw"
                android:textSize="20sp"
                android:padding="8dp"
                android:onClick="plus1TeamA"/>
        </LinearLayout>

        <LinearLayout
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_weight="1"
            android:gravity="center_horizontal"
            android:orientation="vertical">

            <TextView
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:text="Team B"
                android:textSize="24sp"
                android:textColor="#ffffff"
                android:fontFamily="sans-serif"/>

            <TextView
                android:id="@+id/score_team_B"
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:text="0"
                android:textSize="54sp"
                android:padding="16dp"
                android:textColor="#ffffff"/>

            <Button
                android:id="@+id/plus_3_Team_B"
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:text="+3 points"
                android:textSize="20sp"
                android:padding="8dp"
                android:onClick="plus3TeamB"/>

            <Button
                android:id="@+id/plus_2_Team_B"
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:text="+2 points"
                android:textSize="20sp"
                android:padding="8dp"
                android:onClick="plus2TeamB"/>

            <Button
                android:id="@+id/plus_1_Team_B"
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:text="Free throw"
                android:textSize="20sp"
                android:padding="8dp"
                android:onClick="plus1TeamB"/>
        </LinearLayout>
    </LinearLayout>

    <Button
        android:id="@+id/reset"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_gravity="bottom|center"
        android:layout_weight="0"
        android:text="Reset scores"
        android:textSize="20sp"
        android:onClick="reset"/>

</LinearLayout>