public int size ( ) { int size = ( VAR_1 ) - ( first ) ; if ( size < 0 ) return size + ( VAR_2 . length ) ; else { return size ; } } 

public boolean isEmpty ( ) { return ( ( ( first ) == ( VAR_1 ) ) && ( ( VAR_2 [ first ] ) == null ) ) && ( ( VAR_2 [ VAR_1 ] ) == null ) ; } 
