java.util.IdentityHashMap.containsValue() Method


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Description

The containsValue(Object value) method is used to test whether the specified object reference is a value in this identity hash map.

Declaration

Following is the declaration for java.util.IdentityHashMap.containsValue() method.

public boolean containsValue(Object value)

Parameters

  • value -- This is the possible value to be checked.

Return Value

The method call returns 'true' if this map maps one or more keys to the specified object reference.

Exception

  • NA

Example

The following example shows the usage of java.util.IdentityHashMap.containsValue()

package com.tutorialspoint;

import java.util.*;

public class IdentityHashMapDemo {
   public static void main(String args[]) {
   // create identity hash map
   IdentityHashMap ihmap = new IdentityHashMap();
      
   // populate the map
   ihmap.put(1, "java");
   ihmap.put(2, "util");
   ihmap.put(3, "package");
      
   // check if value exists at key 3 
   boolean isavailable=ihmap.containsValue(3);

   System.out.println("Is value exists at key '3': " + isavailable);
   }    
}

Let us compile and run the above program, this will produce the following result.

Is value exists at key '3': false

java_util_identityhashmap.htm

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