Java Proficiency: java hashset example

Showing posts with label java hashset example. Show all posts

Thursday, 11 June 2015

How to Search Value in Hashtable Java

import java.util.Hashtable;

public class HashTableSearchValue {

    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");

        System.out.println(" value=java ="+ht.containsValue("java"));
        System.out.println(" value=ankush ="+ht.containsValue("ankush"));
        System.out.println(" value=java ="+ht.containsValue("java"));

    }
}

Output:

value=java =true

value=ankush =false

value=java =true

Tuesday, 26 May 2015

How to create Hashset In Java

import java.util.HashSet;
import java.util.Set;

public class CreateHashset {

    public static void main(String[] args) {

        Set<String> hs = new HashSet<String>();


        hs.add("java");
        hs.add("php");
        hs.add("html");
        hs.add("javascript");
        hs.add("vb");

        //print hashset
        System.out.println("hashset = "+hs);

    }
}

Output:

hashset = [javascript, php, html, java, vb]