Reviews can now be left for the audi

app/src/main/AndroidManifest.xml

@@ -9,7 +9,8 @@
         android:roundIcon="@mipmap/ic_launcher_round"
         android:supportsRtl="true"
         android:theme="@style/AppTheme">
-        <activity android:name=".returnCar"></activity>
+        <activity android:name=".audiReview"></activity>
+        <activity android:name=".returnCar" />
         <activity android:name=".orderDetails" />
         <activity android:name=".carPurchase" />
         <activity android:name=".Carlist" />

app/src/main/java/com/example/assignment/Carlist.java

@@ -23,4 +23,9 @@ public class Carlist extends AppCompatActivity {
         Intent I = new Intent(this, returnCar.class);
         startActivity(I);
     }
+    public void reviewAudi(View v)
+    {
+        Intent I = new Intent(this, audiReview.class);
+        startActivity(I);
+    }
 }

app/src/main/java/com/example/assignment/audiReview.java

+package com.example.assignment;
+
+import androidx.appcompat.app.AppCompatActivity;
+
+import android.os.Bundle;
+import android.view.View;
+import android.widget.EditText;
+import android.widget.TextView;
+import android.widget.Toast;
+
+import java.io.File;
+import java.io.FileWriter;
+import java.util.Scanner;
+
+public class audiReview extends AppCompatActivity {
+
+    File review;
+    @Override
+    protected void onCreate(Bundle savedInstanceState) {
+        super.onCreate(savedInstanceState);
+        setContentView(R.layout.activity_audi_review);
+
+        review = new File(getApplicationContext().getFilesDir(), "audiReview.txt");
+
+    }
+    public void addReview(View v)
+    {
+        String leaveReview = ((EditText)findViewById(R.id.audiReview)).getText().toString();
+
+        try
+        {
+            FileWriter stream = new FileWriter(review, true);
+            stream.append("- " + leaveReview + "\n");
+            stream.close();
+            Toast.makeText(getApplicationContext(), "You have successfully left a review", Toast.LENGTH_LONG).show();
+        }
+        catch (Exception e)
+        {
+            Toast.makeText(getApplicationContext(), e.toString(), Toast.LENGTH_LONG).show();
+        }
+    }
+
+    public void displayReview(View v)
+    {
+        try {
+            Scanner read = new Scanner(review);
+            String s = "";
+            while (read.hasNextLine()) {
+                s = s + "\n" + read.nextLine();
+            }
+
+            ((TextView) (findViewById(R.id.display))).setText(s);
+        }
+        catch (Exception e)
+        {
+            Toast.makeText(getApplicationContext(), e.toString(), Toast.LENGTH_LONG).show();
+        }
+    }
+}

app/src/main/res/layout/activity_audi_review.xml

+<?xml version="1.0" encoding="utf-8"?>
+<androidx.constraintlayout.widget.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=".audiReview">
+
+    <Button
+        android:id="@+id/button2"
+        android:layout_width="wrap_content"
+        android:layout_height="wrap_content"
+        android:layout_marginTop="5dp"
+        android:layout_marginEnd="40dp"
+        android:layout_marginRight="40dp"
+        android:onClick="addReview"
+        android:text="Add Review"
+        app:layout_constraintEnd_toEndOf="parent"
+        app:layout_constraintTop_toTopOf="parent" />
+
+    <Button
+        android:id="@+id/button3"
+        android:layout_width="382dp"
+        android:layout_height="55dp"
+        android:layout_marginTop="7dp"
+        android:layout_marginEnd="15dp"
+        android:layout_marginRight="15dp"
+        android:onClick="displayReview"
+        android:text="Display"
+        app:layout_constraintEnd_toEndOf="parent"
+        app:layout_constraintTop_toBottomOf="@+id/button2" />
+
+    <TextView
+        android:id="@+id/display"
+        android:layout_width="372dp"
+        android:layout_height="563dp"
+        android:layout_marginTop="24dp"
+        android:layout_marginEnd="19dp"
+        android:layout_marginRight="19dp"
+        app:layout_constraintEnd_toEndOf="parent"
+        app:layout_constraintTop_toBottomOf="@+id/button3" />
+
+    <EditText
+        android:id="@+id/audiReview"
+        android:layout_width="wrap_content"
+        android:layout_height="wrap_content"
+        android:layout_marginStart="24dp"
+        android:layout_marginLeft="24dp"
+        android:layout_marginTop="5dp"
+        android:ems="10"
+        android:gravity="start|top"
+        android:inputType="textMultiLine"
+        app:layout_constraintStart_toStartOf="parent"
+        app:layout_constraintTop_toTopOf="parent" />
+</androidx.constraintlayout.widget.ConstraintLayout>
\ No newline at end of file

app/src/main/res/layout/activity_carlist.xml

@@ -293,6 +293,7 @@ air conditioning, ABS brakes, 2 people "
         android:layout_marginStart="2dp"
         android:layout_marginLeft="2dp"
         android:layout_marginTop="7dp"
+        android:onClick="reviewAudi"
         android:text="Review"
         android:textSize="11sp"
         app:layout_constraintStart_toStartOf="parent"