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package alejus.apps101illinoislectures.javafacts.javafacts; /*ww w . ja v a 2 s . c o m*/ import android.content.res.Resources; import android.support.v7.app.ActionBarActivity; import android.os.Bundle; import android.view.Menu; import android.view.MenuItem; import android.widget.TextView; public class MainActivity extends ActionBarActivity { @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_main); //1) find our text view and set the text in it: TextView message = (TextView) findViewById(R.id.message); //2) we need our resources Resources resources = this.getResources(); //3) We call this resources String[] javafacts = resources.getStringArray(R.array.messages); //So now we have our whole array (30 different strings) of java facts //How to select one of them ? The second one for instance... //String fact = javafacts[1]; //What if we want to do it random ? we will need to import math: int index = (int) (Math.random()*javafacts.length); String fact = javafacts[index]; //Now we pass fact message.setText(fact); //message.setText("HelloWorld!"); } @Override public boolean onCreateOptionsMenu(Menu menu) { // Inflate the menu; this adds items to the action bar if it is present. getMenuInflater().inflate(R.menu.menu_main, menu); return true; } @Override public boolean onOptionsItemSelected(MenuItem item) { // Handle action bar item clicks here. The action bar will // automatically handle clicks on the Home/Up button, so long // as you specify a parent activity in AndroidManifest.xml. int id = item.getItemId(); //noinspection SimplifiableIfStatement if (id == R.id.action_settings) { return true; } return super.onOptionsItemSelected(item); } }