IdentityHashMap isEmpty() in Java

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

Syntax:

boolean java.util.IdentityHashMap.isEmpty()

This method returns true if this identity hash map contains no key-value mappings.

Parameters: NA

Returns: true if this identity hash map contains no key-value mappings.

Exceptions: NA

Approach

Java

import java.util.IdentityHashMap;

public class IdentityHashMapisEmpty {

    public static void main(String args[]) {

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

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

        System.out.println(identityHashMap.isEmpty());

    }

}

Output:

false