Remove all the elements in set1 from set2 (set1 -= set2), set1 becomes the asymmetric difference of set1 and set2

         

import java.util.HashSet;
import java.util.Set;

public class Main {
  public static void main(String[] argv) throws Exception {
    Set set1 = new HashSet();
    Set set2 = new HashSet();

    set1.removeAll(set2);
  }
}

Related examples in the same category

1.	Set, HashSet and TreeSet
2.	Things you can do with Sets
3.	Set operations: union, intersection, difference, symmetric difference, is subset, is superset
4.	Set implementation that use == instead of equals()
5.	Set that compares object by identity rather than equality
6.	Set union and intersection
7.	Set with values iterated in insertion order.
8.	Putting your own type in a Set
9.	Use set
10.	Another Set demo
11.	Set subtraction
12.	Working with HashSet and TreeSet
13.	TreeSet Demo
14.	Show the union and intersection of two sets
15.	Demonstrate the Set interface
16.	Array Set extends AbstractSet
17.	Sync Test
18.	Set Copy
19.	Set and TreeSet
20.	Tail
21.	What you can do with a TreeSet
22.	Remove all elements from a set
23.	Copy all the elements from set2 to set1 (set1 += set2), set1 becomes the union of set1 and set2
24.	Get the intersection of set1 and set2, set1 becomes the intersection of set1 and set2
25.	Extend AbstractSet to Create Simple Set
26.	Int Set
27.	One Item Set
28.	Small sets whose elements are known to be unique by construction
29.	List Set implements Set
30.	Converts a char array to a Set
31.	Converts a string to a Set
32.	Implements the Set interface, backed by a ConcurrentHashMap instance
33.	An IdentitySet that uses reference-equality instead of object-equality
34.	An implementation of the java.util.Stack based on an ArrayList instead of a Vector, so it is not synchronized to protect against multi-threaded access.
35.	A thin wrapper around a List transforming it into a modifiable Set.
36.	A thread-safe Set that manages canonical objects
37.	This program uses a set to print all unique words in System.in
38.	Indexed Set
39.	An ObjectToSet provides a java.util.Map from arbitrary objects to objects of class java.util.Set.
40.	Sorted Multi Set
41.	Fixed Size Sorted Set
42.	Set operations
43.	A NumberedSet is a generic container of Objects where each element is identified by an integer id.
44.	Set which counts the number of times a values are added to it.
45.	Set which counts the number of times a values are added to it and assigns them a unique positive index.
46.	Indexed Set
47.	A set acts like array.
48.	Implements a Bloom filter. Which, as you may not know, is a space-efficient structure for storing a set.
49.	Implementation of disjoint-set data structure
50.	Call it an unordered list or a multiset, this collection is defined by oxymorons

Remove all the elements in set1 from set2 (set1 -= set2), set1 becomes the asymmetric difference of set1 and set2 : Set « Collections Data Structure « Java

Related examples in the same category