public boolean METHOD_1 ( TYPE_1 VAR_1 ) throws TYPE_2 { if ( ( VAR_2 . contains ( VAR_1 ) ) == false ) { VAR_1 . METHOD_2 ( this ) ; return VAR_2 . add ( VAR_1 ) ; } return false ; } 

public boolean METHOD_1 ( TYPE_1 VAR_1 ) throws TYPE_2 { if ( ( VAR_2 . contains ( VAR_1 ) ) == false ) { return VAR_2 . add ( VAR_1 ) ; } return false ; } 
