HashMap getOrDefault(Object, V) in Java

getOrDefault(Object, V): This method is available in java.util.HashMap class of Java.

Syntax:

V java.util.HashMap.getOrDefault(Object key, V defaultValue)

This method takes two arguments. This method returns the value to which the specified key is mapped, or defaultValue if this map contains no mapping for the key.

Parameters: Two parameters are required for this method.

key: the key whose associated value is to be returned.

defaultValue: the default mapping of the key.

Returns: the value to which the specified key is mapped, or defaultValue if this map contains no mapping for the key.

Exceptions: NA

Approach

Java

import java.util.HashMap;

public class HashMapgetOrDefault {
    public static void main(String[] args) {
        HashMap<String, Integer> hashMap = 
                       new HashMap<String, Integer>();

        hashMap.put("Hello", 1);
        hashMap.put("World", 2);

        Object key = "Java";

        System.out.println(hashMap.getOrDefault(key, 10));

    }
}

Output:

10