HashMap containsValue(Object) in Java

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

Syntax:

boolean java.util.HashMap.containsValue(Object value)

This method takes one argument. This method returns true if this map maps one or more keys to the specified value.

Parameters: One parameter is required for this method.

value: value whose presence in this map is to be tested.

Returns: true if this map maps one or more keys to the specified value.

Exceptions: NA

Approach

Java

import java.util.HashMap;

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

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

        Integer value = 1;

        System.out.println(hashMap.containsValue(value));

    }
}

Output:

true