CHECK BOX

import android.app.Activity;
import android.os.Bundle;
import android.view.View;
import android.widget.Button;
import android.widget.CheckBox;
import android.widget.Toast;

public class ChckboxActivity extends Activity {
    /** Called when the activity is first created. */
   
    Button b ;
    CheckBox c1,c2;
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.main);
        b = (Button)findViewById(R.id.button1);
        c1 = (CheckBox)findViewById(R.id.checkBox1);
        c2 = (CheckBox)findViewById(R.id.checkBox2);
    }
    public void show(View V)
    {if(c1.isChecked()==true&&c2.isChecked()==false)
        {
//i used both toast n button to display message..
        Toast.makeText(getBaseContext(), "awesum", 5000).show();
        //b.setText("u r an awesum");
        }
    if(c1.isChecked()==false&&c2.isChecked()==true)
    {
Toast.makeText(getBaseContext(), u r superb", 5000).show();
      //  b.setText("u r superb");
    }
   if(c1.isChecked()==true&&c2.isChecked()==true)
   {
Toast.makeText(getBaseContext(), "u r awesum n superb", 5000).show();
    //   b.setText("u r awesum n superb");
       }
   
   if(c1.isChecked()==false&&c2.isChecked()==false)
   {
Toast.makeText(getBaseContext(), "select any option", 5000).show();
  //     b.setText("atleast select any option");
   }
   }
}


XML FILE

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="fill_parent"
    android:layout_height="fill_parent"
    android:orientation="vertical" >

    <TextView
        android:layout_width="fill_parent"
        android:layout_height="wrap_content"
        android:text="@string/hello" />

    <CheckBox
        android:id="@+id/checkBox1"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="awesum" />

    <CheckBox
        android:id="@+id/checkBox2"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="superb" />


    <Button
        android:id="@+id/button1"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:onClick="show"
        android:text="click" />

</LinearLayout>