Java ConcurrentHashMap equals() Method

The elements() method of ConcurrentHashMap class Compares the specified object with this map for equality and returns true if the given object is a map with the same mappings as this map.

Syntax

Parameter

o - object to be compared for equality with this map

Returns

It returns true if the specified object is equal to this map.

Throws

No exception is thrown.

Example 1

import java.util.*;
import java.util.concurrent.ConcurrentHashMap;

public class ConcurrentHashMapequalsExample1  {
   public static void main(String args[]) {
      
     ConcurrentHashMap<String , String>  mymap = new ConcurrentHashMap<String ,String>(); 

     ConcurrentHashMap<String , String>  mymap2 =  mymap; 
    
     
      mymap.put("AA", "Java");
      mymap.put("BB", "angular");
      mymap.put("CC", "JavaScript");
      
      
      System.out.println("comparing mymap and mymap2 :" +mymap.equals(mymap2));
   }    
}

Test it Now

Output:

comparing mymap and mymap2 :true

Example 2

import java.util.*;
import java.util.concurrent.ConcurrentHashMap;

public class ConcurrentHashMapequalsExample2  {
   public static void main(String args[]) {
      
     ConcurrentHashMap<String , String>  mymap = new ConcurrentHashMap<String ,String>(); 

     ConcurrentHashMap<Integer , Integer>  mymap2 = new ConcurrentHashMap<Integer , Integer>(); 
     
      mymap2.put(1, 101);
      mymap2.put(2, 102);
      mymap2.put(3, 103);
     
      mymap.put("AA", "Java");
      mymap.put("BB", "angular");
      mymap.put("CC", "JavaScript");
      
      
      System.out.println("comparing mymap and mymap2 :" +mymap.equals(mymap2));
   }    
}

Test it Now

Output: