public void METHOD_1 ( ) { this . VAR_1 . remove ( index ) ; this . VAR_2 . remove ( index ) ; } 

public void METHOD_1 ( ) { if ( ( this . VAR_1 . size ( ) ) == 0 ) { return ; } this . VAR_1 . remove ( index ) ; this . VAR_2 . remove ( index ) ; } 
