public boolean removeID(String ID)
	{
		boolean OK = false;
		OK = IDList.remove(ID);	//If false, then ID not found!
		IDList.remove(ID);
		System.out.print(IDList);
		if( OK )
		{
			int gradeHistIndex = Integer.parseInt( ID.substring(0,1) );
			gradesHist.set(gradeHistIndex, new Integer(( (Integer)gradesHist.get(gradeHistIndex) ).intValue()-1) );

			if( ID.charAt(1) == 'M' )
					genderHist.set(0,new Integer(( (Integer)genderHist.get(0) ).intValue()-1) );
				else
					genderHist.set(1,new Integer(( (Integer)genderHist.get(1) ).intValue()-1) );
		}
		return OK;
	}