Data Structure
Networking
RDBMS
Operating System
Java
MS Excel
iOS
HTML
CSS
Android
Python
C Programming
C++
C#
MongoDB
MySQL
Javascript
PHP
Physics
Chemistry
Biology
Mathematics
English
Economics
Psychology
Social Studies
Fashion Studies
Legal Studies
- Selected Reading
- UPSC IAS Exams Notes
- Developer's Best Practices
- Questions and Answers
- Effective Resume Writing
- HR Interview Questions
- Computer Glossary
- Who is Who
Remove an element from IdentityHashMap in Java
Use the remove() method to remove an element from IdentityHashMap.
Let us create IdentityHashMap and add some elements
Map<String, Integer> m = new IdentityHashMap<String, Integer>();
m.put("1", 100);
m.put("2", 200);
m.put("3", 300);
m.put("4", 150);
m.put("5", 110);
m.put("6", 50);
m.put("7", 90);
m.put("8", 250);
m.put("9", 350);
m.put("10", 450);Let’s say you need to remove 2 from the Map. For that, use the remove() method
m.remove("2");The following is an example to remove an element from Java IdentityHashMap
Example
import java.util.*;
public class Demo {
public static void main(String[] args) {
Map<String, Integer> m = new IdentityHashMap<String, Integer>();
m.put("1", 100);
m.put("2", 200);
m.put("3", 300);
m.put("4", 150);
m.put("5", 110);
m.put("6", 50);
m.put("7", 90);
m.put("8", 250);
m.put("9", 350);
m.put("10", 450);
System.out.println("IdentityHashMap elements
"+ m);
m.remove("2");
System.out.println("
Updated IdentityHashMap elements
"+ m);
}
}The output is as follows
IdentityHashMap elements
{2=200, 4=150, 9=350, 7=90, 10=450, 6=50, 5=110, 8=250, 1=100, 3=300}
Updated IdentityHashMap elements
{4=150, 9=350, 7=90, 10=450, 6=50, 5=110, 8=250, 1=100, 3=300}
Updated on: 30-Jul-2019
115 Views
Advertisements