gistfile1.txt

//MainActivity
package com.example.maarten.labo35;

import android.content.Intent;
import android.os.Handler;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.view.Menu;

public class MainActivity extends AppCompatActivity {

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        final int splashDelay = 1000;
        super.onCreate(savedInstanceState);
        setContentView(R.layout.layout);

        new Handler().postDelayed(new Runnable() {
            @Override
            public void run() {
                Intent mainintent = new Intent(MainActivity.this,Menu.class);
                MainActivity.this.startActivity(mainintent);
                MainActivity.this.finish();
            }
        }, splashDelay);
    }
}


//Menu.java
package com.example.maarten.labo35;

import android.app.Activity;
import android.support.v7.app.AppCompatActivity;

/**
 * Created by maarten on 8/08/2017.
 */

public class Menu extends AppCompatActivity {
}

//Manifest
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
    package="com.example.maarten.labo35">

    <application
        android:allowBackup="true"
        android:icon="@mipmap/ic_launcher"
        android:label="@string/app_name"
        android:roundIcon="@mipmap/ic_launcher_round"
        android:supportsRtl="true"
        android:theme="@style/AppTheme">
        <activity android:name=".MainActivity">
            <intent-filter>
                <action android:name="android.intent.action.MAIN" />

                <category android:name="android.intent.category.LAUNCHER" />
            </intent-filter>
        </activity>
        <activity android:name=".Menu" />
    </application>

</manifest>