package dk.thoerup.traininfo.util;

import java.util.Set;
import java.util.TreeSet;

public class IntSet {
	private Set<Integer> ints = new TreeSet<Integer>();
	
	public boolean hasInt(int i) {
		return ints.contains(i);
	}
	
	public void add(int i) {
		ints.add(i);
	}
	
	public void remove(int i) {
		ints.remove(i);
	}
	
	public String toString() {
		StringBuffer sb = new StringBuffer();
		
		for (int i : ints) {
			if (sb.length() > 0) {
				sb.append(",");
			}
			sb.append(i);
		}	
		
		return sb.toString();
	}
	
	public void fromString(String intStr) {
		ints.clear();
		String parts[] = intStr.split(",");
		for (String istr : parts) {
			ints.add( Integer.parseInt(istr));
		}
	}
	
}