Please answer this exercise using java.

SetImp.java

public class SetImp implements Set{ private int set[]; private int count;

public SetImp(){ set = new int[max]; count=0; }

public SetImp(int size){ set = new int[size]; count=0; }

public void add(int num){ if(!(contains(num))) set[count++]=num; }

private boolean contains(int num){ boolean ans=false; for(int i=0;i

public void display(){ System.out.print("{"); for(int i=0;i

public Set union(Set s){ Set s1 = new SetImp(); for(int i=0;i

//public Set intersection(Set s); //public Set difference(Set s); //public boolean subset(Set s); //public boolean disjoint(Set s); //public int cardinality();

/*public static void main(String[] args){ Set set1 = new SetImp(); Set set2 = new SetImp(); Set set3 = new SetImp(); set1.add(1); set1.add(2); set1.add(3); set2.add(1); set2.add(4); set2.add(5); set1.display(); set2.display(); set3=set1.union(set2); set3.display(); }*/ }