Create Option Menu in Android Application

<menu xmlns:android="http://schemas.android.com/apk/res/android" >

    <item
        android:id="@+id/action_settings"
        android:orderInCategory="100"
        android:title="@string/action_settings"/>
</menu>


enter a label for your option in 
android:title="@string/action_settings
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and type this coding in your layout java page
// this for create a menu in the layout
public boolean onCreateOptionsMenu(Menu menu) {

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        // Inflate the menu; this adds items to the action bar if it is present.
        getMenuInflater().inflate(R.menu.page, menu);
        return true;
    }
  //to catch the click option from the menu to identify which option selected  
// import MenuItem Library also
    public boolean onOptionsItemSelected(MenuItem item) {
        // Handle item selection
        switch (item.getItemId()) {
        
        case R.id.action_settings:
//if action_setting id is chosen it will cal newproductactivity class
            Intent i = new Intent(getApplicationContext(), NewProductActivity.class);
            startActivity(i);
            return true;

        default:
            return super.onOptionsItemSelected(item);

        }
    }

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now we have one option in option menu 
 import MenuItem Library also