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Sunday, 14 June 2015

How to Search Value in HashMap Java

import java.util.HashMap;
import java.util.Map;

public class HashMapSearchValue {

    public static void main(String[] args) {
      
        Map<Integer,String> hm = new HashMap<Integer,String>();
          
        /*
         * Associates the specified value with the specified key in
           this map (optional operation). If the map previously
           contained a mapping for the key, the old value is
           replaced by the specified value
         */
            hm.put(1,"ankush");
            hm.put(2, "amit");
            hm.put(3,"shivam");
            hm.put(4,"ankit");
            hm.put(5, "yogesh");
          
            System.out.println(" value john ="+hm.containsValue("john"));
            System.out.println(" value amit ="+hm.containsValue("amit"));
          
            System.out.println(" value piyush ="+hm.containsValue("piyush"));
            System.out.println(" value shivam ="+hm.containsValue("shivam"));
          
        }

}

Output;

 value john =false

 value amit =true

 value piyush =false

 value shivam =true

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