package schn.beme.be.storysummary;

import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;

public class PresentationActivity extends AppCompatActivity {



    @Override
    protected void onCreate(Bundle savedInstanceState) {

        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_presentation);
    }
}

package schn.beme.be.storysummary;

import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;

public class PresentationActivity extends AppCompatActivity {

    int var;

    @Override
    protected void onCreate(Bundle savedInstanceState) {

        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_presentation);
    }
}

test commit