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SetAddAllRetainAllRemoveAll.java

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package com.set;

import java.util.Arrays;

import java.util.HashSet;

import java.util.Set;

public class SetAddAllRetainAllRemoveAll {

public static void main(String[] args) {

Set<Integer> aSet = new HashSet<>();

aSet.addAll(Arrays.asList(new Integer[] {1,3,2,4,8,9,0}));

Set<Integer> bSet = new HashSet<>();

bSet.addAll(Arrays.asList(new Integer[] {1,3,7,5,4,0,7,5}));

//Union

Set<Integer> unionSet = new HashSet<Integer>(aSet);

unionSet.addAll(bSet);

System.out.println("UnionSet after AddAll ==>"+unionSet);

//Intersection

Set<Integer> intersectionSet = new HashSet<>(aSet);

intersectionSet.retainAll(bSet);

System.out.println("IntersectionSet after retainAll ==>"+intersectionSet);

//difference

Set<Integer> differenceSet = new HashSet<>(aSet);

differenceSet.removeAll(bSet);

System.out.println("Difference Set after removeAll ==>"+differenceSet);

}

}