ArrayList of randomized Strings into textview, cannot resolve symbol 'add'

I am new to android and Java, just started. I am trying to build an app that shows a random string, which in my case is a quote, from an array list. I want the quote to show up in a textview, but I am also open to different methods of showing the quote. I have tried two ways of accomplishing this, but none of them work. I notice that both ways have trouble with add- when I hover over add (which is red) it says that cannot resolve symbol 'add'. Here is my first attempt:

import android.net.Uri;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.widget.TextView;

import com.google.android.gms.appindexing.Action;
import com.google.android.gms.appindexing.AppIndex;
import com.google.android.gms.appindexing.Thing;
import com.google.android.gms.common.api.GoogleApiClient;

import java.util.ArrayList;
import java.util.Random;

public class MainActivity extends AppCompatActivity {

ArrayList<String> strings = new ArrayList<String>();

strings.add("quote 1");
strings.add("second quote");
strings.add("new quote");
strings.add("quote");
strings.add("sgbsb");
strings.add("sgsgb");
strings.add("sfgbdfg");
Random r = new Random();

String string = strings.get(r.nextInt(strings.size()));
TextView text = (TextView) findViewById(R.id.textView2);

private GoogleApiClient client;


@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_main);
    client = new GoogleApiClient.Builder(this).addApi(AppIndex.API).build();
}


public Action getIndexApiAction() {
    Thing object = new Thing.Builder()
            .setName("Main Page") // TODO: Define a title for the content shown.
            // TODO: Make sure this auto-generated URL is correct.
            .setUrl(Uri.parse("http://[ENTER-YOUR-URL-HERE]"))
            .build();
    return new Action.Builder(Action.TYPE_VIEW)
            .setObject(object)
            .setActionStatus(Action.STATUS_TYPE_COMPLETED)
            .build();
}

@Override
public void onStart() {
    super.onStart();

    client.connect();
    AppIndex.AppIndexApi.start(client, getIndexApiAction());
}

@Override
public void onStop() {
    super.onStop();
    AppIndex.AppIndexApi.end(client, getIndexApiAction());
    client.disconnect();
}

}

In my second attempt, which uses a slightly different code (that is why I left a lot out), the problem gets worst. It has problems with NextINT, size, and get.

import android.net.Uri;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.widget.TextView;

import com.google.android.gms.appindexing.Action;
import com.google.android.gms.appindexing.AppIndex;
import com.google.android.gms.appindexing.Thing;
import com.google.android.gms.common.api.GoogleApiClient;

import java.util.ArrayList;
import java.util.Random;

public class MainActivity extends AppCompatActivity {


    ArrayList<String> strings = new ArrayList<String>();
strings.add("My adress is 1274 ogden st");
strings.add("fsdfs");
strings.add("bsgsgb");
strings.add("sgbfg");
strings.add("sgbsb");
strings.add("sgsgb");
strings.add("sfgbdfg");


Random random = new Random();

strings.get(random.nextInt(strings.size()))
TextView text = (TextView) findViewById(R.id.textView2);

private GoogleApiClient client;
text.seText((CharSequence)strings));

Is there anyway to fix the cannot resolve symbol problem? I have tried all of the suggestions that I found on the internet, including Stackoverflow.