/*
 * Student First Name:
 * Student Last Name:
 * Student BU Number:
 * Purpose: 
 */

public class Set  {
    private static final int SIZE = 10; // default size of initial set
                                
    private int[] set;      // array referece to the set
    private int size;    // current size of the set
    private int next;       // index to next available slot in the set array
    
    
    public Set() {
        // your code here
    }
    
    public Set(int[] A) {
        // your code here
    }
    
    public Set clone() {
        // your code here
        return this;   // just to get it to compile; replace this with something appropriate   
    }
    
    // This method reallocates the array set to twice as big and copies all the elements over.
    // It is called only by insert.
    //
    // Note that this is the reason that in this class
    // the member size is not a class variable (i.e. static)
    // and it is not final, because the set can grow and size
    // will be modified accordingly.
    
    private void resize() {
        size *= 2;
        int[] temp = new int[size];
        for(int i = 0; i < set.length; ++i) {
            temp[i] = set[i];
        }
        set = temp;
    }
        
    public  String toString()  {
        // your code here
        return null;   // just to get it to compile; replace null with something appropriate    
    } 
     
    public int cardinality() {
        // your code here
        return 0;   // just to get it to compile; replace 0 with something appropriate    
    }
    
    public  boolean isEmpty() {
        // your code here
        return false;   // just to get it to compile; replace false with something appropriate   
    }
      
    public boolean member(int k) {
        // your code here
        return false;   // just to get it to compile; replace false with something appropriate   
    }    
   
    public  boolean subset(Set T) {
        // your code here
        return false;   // just to get it to compile; replace false with something appropriate   
    }
    
    public  boolean equal(Set T) {
        // your code here
        return false;   // just to get it to compile; replace false with something appropriate   
    }
       
    public void insert(int k) {
        // your code here
    }
    
    public void delete(int k) {
        // your code here
    }
  
    public Set union(Set T) {
        // your code here
        return null;   // just to get it to compile; replace null with something appropriate   
    }
   
    public Set intersection(Set T) {
        // your code here
        return null;   // just to get it to compile; replace null with something appropriate   
    }
    
    public Set setdifference(Set T) {
        // your code here
        return null;   // just to get it to compile; replace null with something appropriate   
    }
      
}