Home » Java programming language

Java WeakHashMap get() Method with Example

WeakHashMap Class get() method: Here, we are going to learn about the get() method of WeakHashMap Class with its syntax and example.
Submitted by Preeti Jain, on February 23, 2020

WeakHashMap Class get() method

  • get() method is available in java.util package.
  • get() method is used to get the value to which the given key element (key_ele) associated in this map otherwise it returns null.
  • get() method is a non-static method, it is accessible with the class object only and if we try to access the method with the class name then we will get an error.
  • get() method does not throw an exception at the time of returning the value of the given key element (key_ele).


    public Object get(Object key_ele);


  • Object key_ele – represents the key element (key_ele) whose mapping is to be retrieved.

Return value:

The return type of the method is Object, it returns key element (key_ele) value when it exists otherwise it returns null.


// Java program to demonstrate the example 
// of Object get(Object key_ele) method of WeakHashMap 

import java.util.*;

public class GetOfWeakHashMap {
    public static void main(String[] args) {
        // Instantiates a WeakHashMap object
        Map < Integer, String > map = new WeakHashMap < Integer, String > ();

        // By using put() method is to add
        // key-value pairs in a WeakHashMap
        map.put(10, "C");
        map.put(20, "C++");
        map.put(50, "JAVA");
        map.put(40, "PHP");
        map.put(30, "SFDC");

        // Display WeakHashMap
        System.out.println("WeakHashMap: " + map);

        // By using get() method is to return
        // the value associated for the given
        // key element exists in this WeakHashMap
        Object val_ele = map.get(50);

        // Display val_ele
        System.out.print("map.get(50): ");


WeakHashMap: {30=SFDC, 40=PHP, 10=C, 20=C++, 50=JAVA}
map.get(50): JAVA


Comments and Discussions



Languages: » C » C++ » C++ STL » Java » Data Structure » C#.Net » Android » Kotlin » SQL
Web Technologies: » PHP » Python » JavaScript » CSS » Ajax » Node.js » Web programming/HTML
Solved programs: » C » C++ » DS » Java » C#
Aptitude que. & ans.: » C » C++ » Java » DBMS
Interview que. & ans.: » C » Embedded C » Java » SEO » HR
CS Subjects: » CS Basics » O.S. » Networks » DBMS » Embedded Systems » Cloud Computing
» Machine learning » CS Organizations » Linux » DOS
More: » Articles » Puzzles » News/Updates

© some rights reserved.