void clear(){
  Arrays.fill(status,0,size,(byte)0);
  Arrays.fill(entries,0,size,null);
  Arrays.fill(deps,0,size,null);
  lowDep=-1;
  size=0;
}

void clear ( ) { Arrays . fill ( status , 0 , size , ( byte ) 0 ) ; Arrays . fill ( entries , 0 , size , null ) ; Arrays . fill ( deps , 0 , size , null ) ; lowDep = - 1 ; size = 0 ; }
resets table to its initial state .
