AlertDialog.java

 AlertDialog.Builder alert= new AlertDialog.Builder(this);
 alert.setMessage("are you sure to delete")
 .setIcon(android.R.drawable.stat_notify_error)
 .setTitle("Alert")
 .setPositiveButton("Yes", new DialogInterface.OnClickListener() {
 @Override
 public void onClick(DialogInterface dialog, int which) {
 //do some thing 
 }
 })
 .setNegativeButton("No", new DialogInterface.OnClickListener() {
 @Override
 public void onClick(DialogInterface dialog, int which) {
 //do some thing 
 }
 }).show();