Java : Collection Framework : HashMap (ContainsValue)

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HashMapExample.java

import java.util.HashMap;

/*
 * Example of containsValue(Object value) method.
 */
public class HashMapExample
{
    public static void main( String[] args )
    {

        HashMap<Integer, String> hashMap = new HashMap<Integer, String>();

        hashMap.put(1, "Apple");
        hashMap.put(2, "Ball");
        hashMap.put(3, "Cat");

        System.out.println("hashMap : " + hashMap + "\n");

        /*
         * Returns true if this map maps one or more keys to the specified
         * value.
         */
        boolean isValueExist = hashMap.containsValue("Ball");

        System.out.println("isValue 'Ball' Exist : " + isValueExist);

        isValueExist = hashMap.containsValue("Dog");

        System.out.println("isValue 'Dog' Exist : " + isValueExist);
    }
}

Output

hashMap : {1=Apple, 2=Ball, 3=Cat}

isValue 'Ball' Exist : true
isValue 'Dog' Exist : false

To Download HashMapDemoContainsValue Project Click the below link
https://sites.google.com/site/javaee4321/java-collections/HashMapDemoContainsValue.zip?attredirects=0&d=1

See also:

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