MainActivity.java

package com.pedrogouveia.teste1;

import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.view.Menu;
import android.view.MenuItem;
import android.view.View;
import android.widget.Button;
import android.widget.TextView;

import org.w3c.dom.Text;

public class MainActivity extends AppCompatActivity {


    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);

        setContentView(R.layout.activity_main);

        //reference to xml widgets
        TextView FishText = (TextView) findViewById(R.id.FishText);
        TextView DogText = (TextView) findViewById((R.id.DogText));
        Button ChangeNameButton = (Button) findViewById(R.id.ChangeNameButton);

        final String animais[] = new String[5];

    }






        public void ChangeFish(){
            String [] animais = {"Dog","Cat","Rat","Horse","Mouse"};
        final TextView FishText = (TextView) findViewById(R.id.FishText);
            for(int contador = 0;contador<5;contador++) {
                FishText.setText(animais[contador]);
            }



            }
    }