IdentityHashMap containsValue(Object) in Java

containsValue(Object): This method is available in java.util.IdentityHashMap class of Java.

Syntax:

boolean java.util.IdentityHashMap.containsValue(Object value)

This method takes one argument. This method tests whether the specified object reference is a value in this identity hashmap.

Parameters: One parameter is required for this method.

value: value whose presence in this map is to be tested.

Returns: true if this map maps one or more keys to the specified object reference.

Exceptions: NA

Approach

Java

import java.util.IdentityHashMap;

public class IdentityHashMapcontainsValue {

    public static void main(String args[]) {

        IdentityHashMap<String, Integer> identityHashMap =
                     new IdentityHashMap<String, Integer>();

        identityHashMap.put("Java", 1);
        identityHashMap.put("Hello", 2);

        Object value = 1;

        System.out.println(identityHashMap.containsValue(value));
    }

}

Output:

true