/*
Check if a particular value exists in Java Hashtable example
This Java Example shows how to check if Hashtable object contains a particular
value using contains method of Hashtable class.
*/
import java.util.Hashtable;
public class CheckValueOfHashtableExample {
public static void main(String[] args) {
//create Hashtable object
Hashtable ht = new Hashtable();
//add key value pairs to Hashtable
ht.put("1","One");
ht.put("2","Two");
ht.put("3","Three");
/*
To check whether a particular value exists in Hashtable use
boolean contains(Object key) method of Hashtable class.
It returns true if the value is mapped to one or more keys in the
Hashtable otherwise false.
*/
boolean blnExists = ht.contains("Two");
System.out.println("Two exists in Hashtable ? : " + blnExists);
}
}
/*
Output would be
Two exists in Hashtable ? : true
*/
