/*//////////////////////////////////////////////////////////
	15-111 Sections G and H
	Lab 2 Template
	Name:
	Section:
	Andrew Id:
	Last Updated:
	Comments to the grader:
	
	class Set
///////////////////////////////////////////////////////////*/
import java.util.*;

public class Set
{
	// set container
	private Vector list;
	// defualt constructor
	public Set() {  list = new Vector();}
	// build the set
	void add(Object obj){
	    if (!list.contains(obj))
	       list.addElement(obj);
	}
	// return true if the set contains the object
	boolean contains(Object obj){
	   return (list.contains(obj));
	}
	// print the set
	void print(){ 
	   System.out.print("{");
	   for (int i=0;i<list.size()-1;i++)
	     System.out.print(list.elementAt(i)+",");
	   System.out.print(list.elementAt(list.size()-1));  
	   System.out.println("}");
	}
	// find the intersection with another set
	Set intersection(Set other){
	   Set temp = new Set();
	   for (int i=0; i<list.size(); i++)
	     if (other.contains(list.elementAt(i)))
	        temp.add(list.elementAt(i));
	   return temp;
	}
	// find the union with another set
	Set union(Set other){
	   Set temp = new Set();
	   for (int i=0; i<list.size(); i++)
	        temp.add(list.elementAt(i));
	   for (int j=0; j<other.list.size(); j++)
	        temp.add(other.list.elementAt(j));
	   return temp;
	} 
	// find the compliment with another set
	Set complement(Set other){
	   Set temp = new Set();
	   for (int i=0; i<list.size(); i++)
	     if (!other.contains(list.elementAt(i)))
	        temp.add(list.elementAt(i));
	   return temp;
	}       
		
	
}