yusufcakal

public class ComputerFactory {

    public static Computer createComputer(Class aClass) throws IllegalAccessException, InstantiationException {
        if (aClass.getName().equals(aClass.getName())){
            return (Computer) aClass.newInstance();
        }
        return null;
    }

}

yusufcakal

public class Main {

    public static void main(String[] args) {

        try {
            Asus asus = (Asus) ComputerFactory.createComputer(Asus.class);
            asus.since(1234);
            asus.name();

            Mac mac = (Mac) ComputerFactory.createComputer(Mac.class);

yusufcakal

public class ComputerFactory {
    public static Computer createComputer(Class aClass) throws IllegalAccessException, InstantiationException {
            return (Computer) aClass.newInstance();
    }
}

yusufcakal

import java.util.ArrayList;
import java.util.List;

public class Main {

    public static void main(String[] args) {

        List<Integer> list = new ArrayList<>();
        list.add(8);
        list.add(5);

yusufcakal

dependencies {
     compile 'com.google.firebase:firebase-messaging:11.8.0'
}

yusufcakal

<service
    android:name=".MyFirebaseMessagingService">
    <intent-filter>
        <action android:name="com.google.firebase.MESSAGING_EVENT"/>
    </intent-filter>
</service>

yusufcakal

<service
    android:name=".MyFirebaseInstanceIDService">
    <intent-filter>
        <action android:name="com.google.firebase.INSTANCE_ID_EVENT"/>
    </intent-filter>
</service>

yusufcakal

<meta-data
    android:name="com.google.firebase.messaging.default_notification_icon"
    android:resource="@drawable/ic_stat_ic_notification" />

<meta-data
    android:name="com.google.firebase.messaging.default_notification_color"
    android:resource="@color/colorAccent" />

yusufcakal

package yusufcakal.com.cloudmessagging;

/**
 * Created by Yusuf on 19.12.2017.
 */

import android.app.NotificationManager;
import android.app.PendingIntent;
import android.content.Context;
import android.content.Intent;

yusufcakal

public class MyFirebaseMessagingService extends FirebaseMessagingService {

    private static final String TAG = "MyFirebaseMsgService";

    @Override
    public void onMessageReceived(RemoteMessage remoteMessage) {
        super.onMessageReceived(remoteMessage);
        Log.d(TAG, "From: " + remoteMessage.getFrom());

        if (remoteMessage.getData().size() > 0) {