public boolean contains ( final int VAR_1 ) { final java.lang.String key = ( VAR_2 ) + VAR_1 ; return this . contains ( key ) ; } 

public boolean contains ( final int VAR_1 ) { if ( VAR_1 < 0 ) { return false ; } final java.lang.String key = ( VAR_2 ) + VAR_1 ; return this . contains ( key ) ; } 
