RatingBar - Android Widgets Example

package com.myapp;

import android.os.Bundle;
import android.app.Activity;
import android.view.Menu;
import android.view.View;
import android.widget.RatingBar;
import android.widget.TextView;
import android.widget.Button;
import android.widget.RatingBar.OnRatingBarChangeListener;
import android.widget.Toast;

public class MainActivity extends Activity {

    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        
        // textView1
        final TextView txtView1 = (TextView)findViewById(R.id.textView1); 
        
        // seekBar1
        final RatingBar rating_Bar = (RatingBar)findViewById(R.id.ratingBar1);
        rating_Bar.setOnRatingBarChangeListener(new OnRatingBarChangeListener() {
    		public void onRatingChanged(RatingBar ratingBar, float rating,
    			boolean fromUser) {

    			txtView1.setText("Your Selected : " + String.valueOf(rating));
     
    		}
    	});
        
        // button1
        final Button btn1 = (Button)findViewById(R.id.button1);
        btn1.setOnClickListener(new View.OnClickListener() {
            public void onClick(View v) {
    			Toast.makeText(MainActivity.this,
        				String.valueOf("Your Selected : " + rating_Bar.getRating()),
        					Toast.LENGTH_SHORT).show();
            }
        });     
      
    }

    @Override
    public boolean onCreateOptionsMenu(Menu menu) {
        getMenuInflater().inflate(R.menu.activity_main, menu);
        return true;
    }
    
}