How to Search key in Hashtable Java

import java.util.Hashtable;

public class HashTableSearchKey {

public static void main(String[] args) {

Hashtable<Integer,String> ht = new Hashtable<Integer,String>();

/*
* Maps the specified key to the specified
* value in this hashtable
*/
ht.put(1, “java”);
ht.put(2, “jersey”);
ht.put(3, “spring”);
ht.put(4, “c”);
ht.put(5, “php”);

/*
* Returns: true if and only if the specified object
* is a key in this hashtable, as determined by the equals method;
false otherwise.
*/
System.out.println(” key =1   =”+ht.containsKey(1));
System.out.println(” key =10   =”+ht.containsKey(10));
System.out.println(” key =5   =”+ht.containsKey(5));
}

}

Output:

key =1   =true

key =10   =false

key =5   =true

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