public TYPE_1 METHOD_1 ( int position ) { if ( position == 0 ) { return TYPE_2 . METHOD_2 ( position ) ; } if ( position == 1 ) { return TYPE_3 . METHOD_2 ( position ) ; } else { return null ; } } 

public TYPE_1 METHOD_1 ( int position ) { if ( position == 0 ) { return TYPE_2 . METHOD_2 ( position ) ; } else { return null ; } } 
