Java IdentityHashMap size() method

Last Updated : 17 Mar 2025

The size() method of the Java IdentityHashMap class is used to calculate the no of key-value pairs present in the calling IdentityHashMap.

Syntax

Return

An integer denoting the number of key-value pairs present in the IdentityHashMap.

Example 1

Output:

6
{Java=1, the=3, language=6, programming=5, best=4, is=2}

Example 2

Output:

4
{[email protected], [email protected], [email protected], [email protected]}