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Remove specified element from HashSet in Java
To remove specified element from HashSet, use the remove() method.
First, declare a HashSet and add elements −
Set<Integer> hs = new HashSet<Integer>(); hs.add(20); hs.add(39); hs.add(67); hs.add(79); hs.add(81); hs.add(87); hs.add(88);
Let’s say you need to remove element 39. For that, use the remove() method −
hs.remove(39);
The following is an example to remove specified element from HashSet −
Example
import java.util.*;
public class Demo {
public static void main(String args[]) {
Set<Integer> hs = new HashSet<Integer>();
hs.add(20);
hs.add(39);
hs.add(67);
hs.add(79);
hs.add(81);
hs.add(87);
hs.add(88);
System.out.println("Elements = "+hs);
// remove specific elements
hs.remove(39);
System.out.println("Updated Elements = "+hs);
}
}Output
Elements = [81, 67, 20, 39, 87, 88, 79] Updated Elements = [81, 67, 20, 87, 88, 79]
Updated on: 25-Jun-2020
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