LinkedHashMap size() in Java

size(): This method is available in java.util.LinkedHashMap class of Java.

Syntax:

int java.util.HashMap.size()

This method returns the number of key-value mappings in this map.

Parameters: NA

Returns: the number of key-value mappings in this map.

Exceptions: NA

Approach

Java

import java.util.LinkedHashMap;

public class LinkedHashMapsize {

    public static void main(String args[]) {

        LinkedHashMap<String, Integer> linkedHashMap =
                   new LinkedHashMap<String, Integer>();

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

        System.out.println(linkedHashMap.size());
    }

}

Output:

2