Searching Key and finding value associated with it in a HashTable

 

import java.util.Hashtable;

import java.util.Scanner;

public class FindSizeAndKey {

public static void main(String[] args) {

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

//adding element to our HashTable

ht.put(1, "Vidya");

ht.put(2, "Sambhavna");

ht.put(3, "Tina");

ht.put(4, "Gravit");

ht.put(5, "Anmol");

ht.put(6, "Veer");

//finding size of our HashTable

System.out.println("Size of Table is = " + ht.size());

//checking if a key is present in the table or not

Scanner sc = new Scanner(System.in);

System.out.println("Enter the key you want to find");

int key = sc.nextInt();

if (ht.containsKey(key)) {

String value = ht.get(key);

System.out.println(

"The value stored at key " + key + " is --->>> " + value

);

}

}

}