AndroidManifest.xml

<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
 package="net.learn2develop.MyActionBar"
 android:versionCode="1"
 android:versionName="1.0" >

 <uses-sdk android:minSdkVersion="14" />

 <application
         android:icon="@drawable/ic_launcher"
         android:label="@string/app_name" >

    <activity
             android:label="@string/app_name"
             android:name=".MyActionBarActivity">
        <intent-filter >
            <action android:name="android.intent.action.MAIN" />

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

</manifest>

TO SEE Overflow action items (options menu) hit the menu button on emulator

package net.learn2develop.MyActionBar;

import android.app.ActionBar;
         import android.app.Activity;
         import android.content.Intent;
         import android.os.Bundle;
         import android.view.Menu;
         import android.view.MenuItem;
         import android.widget.Toast;

public class MyActionBarActivity extends Activity {
         /** Called when the activity is first created. */
         @Override
         public void onCreate(Bundle savedInstanceState) {
         super.onCreate(savedInstanceState);
         setContentView(R.layout.main);
   
         ActionBar actionBar = getActionBar();
         actionBar.setDisplayHomeAsUpEnabled(true);  //this makes the action items clickable
         //actionBar.setDisplayShowHomeEnabled(true);
         //actionBar.hide(); //if we wanted to hide the action bar altogether
         //actionBar.show(); //---show it again---
         }
   
        //setup the Menu that will be used as the Action Items in the ActionBar
         @Override
         public boolean onCreateOptionsMenu(Menu menu) { 
              super.onCreateOptionsMenu(menu);
              CreateMenu(menu);
              return true;
         }
   

         //Event handler callback function if an ActionItem (MenuItem) in the ActionBar(menu) is selected
         @Override
         public boolean onOptionsItemSelected(MenuItem item)
         { 
              return MenuChoice(item); 
         } 
   


         //this is the method that actually makes the Menu setting up 5 "dummy" MenuItems to represent
         // the action items.
         private void CreateMenu(Menu menu)
         {
              MenuItem mnu1 = menu.add(0, 0, 0, "Item 1");
              { 
                   mnu1.setIcon(R.drawable.ic_launcher);
                   mnu1.setShowAsAction( MenuItem.SHOW_AS_ACTION_IF_ROOM | MenuItem.SHOW_AS_ACTION_WITH_TEXT); 
              }

              MenuItem mnu2 = menu.add(0, 1, 1, "Item 2");
              { 
                   mnu2.setIcon(R.drawable.ic_launcher); 
                   mnu2.setShowAsAction( MenuItem.SHOW_AS_ACTION_IF_ROOM | MenuItem.SHOW_AS_ACTION_WITH_TEXT);
              }

              MenuItem mnu3 = menu.add(0, 2, 2, "Item 3");
              { 
                   mnu3.setIcon(R.drawable.ic_launcher);
                   mnu3.setShowAsAction( MenuItem.SHOW_AS_ACTION_IF_ROOM | MenuItem.SHOW_AS_ACTION_WITH_TEXT);
              }
     
              MenuItem mnu4 = menu.add(0, 3, 3, "Item 4");
              { 
                   mnu4.setShowAsAction(MenuItem.SHOW_AS_ACTION_IF_ROOM |MenuItem.SHOW_AS_ACTION_WITH_TEXT);
              }
     
              MenuItem mnu5 = menu.add(0, 4, 4, "Item 5");
              { 
                   mnu5.setShowAsAction(MenuItem.SHOW_AS_ACTION_IF_ROOM |MenuItem.SHOW_AS_ACTION_WITH_TEXT);
              }
         }
   


         //This is the method called by eventhandler callback to handle each menuItem as it is selected by user
         // simply displays using android.widget.Toast a temporary message to user they selected that item.
         private boolean MenuChoice(MenuItem item)
         { 
              switch (item.getItemId()) {
                   case  android.R.id.home:
                        Toast.makeText(this, "You clicked on the Application icon",Toast.LENGTH_LONG).show();

                        Intent i = new Intent(this, MyActionBarActivity.class);
                        i.addFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP);
                        startActivity(i);
                        return true;

                   case 0:
                        Toast.makeText(this, "You clicked on Item 1", 
                        Toast.LENGTH_LONG).show();
                        return true;

                   case 1:
                        Toast.makeText(this, "You clicked on Item 2", 
                        Toast.LENGTH_LONG).show();
                        return true;

                   case 2:
                        Toast.makeText(this, "You clicked on Item 3", 
                        Toast.LENGTH_LONG).show();
                        return true;

                   case 3:
                        Toast.makeText(this, "You clicked on Item 4", 
                        Toast.LENGTH_LONG).show();
                        return true;
     
                   case 4:
                        Toast.makeText(this, "You clicked on Item 5", 
                        Toast.LENGTH_LONG).show();
                        return true; 
              }
              return false;
         } 

}

NOTE the above code has the statement --- it says to show with the attached text the menu item -- see below where both the icon for that menu
item and its text are both shown when application is in landscape mode and has more room.

MenuItem mnu1 = menu.add(0, 0, 0, "Item 1");     
{          
       mnu1.setIcon(R.drawable.ic_launcher);          
       mnu1.setShowAsAction( MenuItem.SHOW_AS_ACTION_IF_ROOM | MenuItem.SHOW_AS_ACTION_WITH_TEXT);     

}