CheckBox

• A checkbox is a specific type of two-states button that can be either checked or unchecked  ]
• In Check Box  you can select either one or more check boxes.

 checkbox inside your activity would be :

public class MyActivity extends Activity { 
     protected void onCreate(Bundle icicle) {        
 super.onCreate(icicle); 
         setContentView(R.layout.content_layout_id); 
         final CheckBox checkBox = (CheckBox) findViewById(R.id.checkbox_id);        
 if (checkBox.isChecked()) {             
checkBox.setChecked(false);          }   
}
  }