Back button pressed

created four activity, i want to go last activity to second activity through back button pressed.
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Main_activity.java
Second.java
Third.java
Last.java
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public class Last extends Activity {
@Override
protected void onCreate(Bundle savedInstanceState) {
// TODO Auto-generated method stub
super.onCreate(savedInstanceState);
setContentView(R.layout.last);

}
@SuppressLint("InlinedApi")
@Override
public void onBackPressed()
{
    super.onBackPressed(); 
    Intent intent = new Intent(getApplicationContext(), Second.class);
    intent.setFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP);
    startActivity(intent);

}
}