Sunday 30 June 2013

(Freshers) Off-Campus : BE / B.Tech / MCA / MBA : Software Developers @ Hyderabad

Snigdha Techno Services Pvt Ltd (www.snigdhatech.com)
www.ChetanaS.com
- Exclusive Job for Chetanaites...



At SnigdhaTech, it means achieving real business results that allow you to transform, and not just maintain, your operations. Our IT services, business solutions, and outsourcing bring you a level of certainty that no other competitor can match. You'll experience requirements that are met on-time, within budget, and with high quality; greater efficiency and responsiveness to your business; and the ability to shift investment to strategic initiatives rather than tactical functions.




(Freshers) Off-Campus : BE / B.Tech / MCA / MBA : Software Developers @ Hyderabad
www.ChetanaS.com
Note from Company: This is a direct job with our company. There will NOT be any Training/Recruitment/Registration/Consulting fees collected from candidates before/after the placement.

Note from ChetanaS: This is NOT a direct Walk-In. You need to apply through ChetanaS at given EMAIL, and Only shortlisted candidates will be called for personal interview.

Greetings to ChetanaS from SnigdhaTech ! We have below job openings for our organization.

Job Position : Fresher

Job Designation : Software Developer

Job Category : IT / Software

Interview Location : Hyderabad, Andhra Pradesh

Job Location : Hyderabad, Andhra Pradesh

Note: Only those willing to relocate to HYDERABAD should apply.

Desired Qualification :
# BE/B.Tech(CS/IT) / MCA / MBA
# Criteria: 65% or more throughout

Desired Experience : 0 to 1 Years

Key Skills : .NET, JAVA, C, C++, Web Designing
www.ChetanaS.com
We have four profiles for which we are hiring :
# JAVA Developer Trainee
# .NET Trainee
# Web Designer Trainee
# C, C++
www.ChetanaS.com
Desired Candidate Profile :
# Ability to work independently & handle work pressure efficiently.
# Must be self confident to work in a Team and to handle the responsibilities individually as well
# Candidate having Good communication skills and excellent creativity.
# Self Motivated, proactive, confident, strong technical back ground and analytical skills.
www.ChetanaS.com
Note: Candidates without knowledge/certification in above mentioned skills - Please do NOT apply.
www.ChetanaS.com
..................................................

How to Apply for this Job ?

* This is NOT a direct Walk-In. You need to apply at given Email Id, and Only shortlisted candidates will be called for test/interview.

* Please apply ONLY IF you have above mentioned skills. Clearly mention the same in your resume. Otherwise, your resume will NOT be considered.

If eligible, Please send your resume at : snigdhatech_fresh@ChetanaSforum.com

Job Code : CHETANAS

Please mention the Subject Line of your Email in the below format :

<Job Code> - <Job Position> - <Your Current Location> - <Qualification | Branch> - <Year of Passout> - <Years of Experience> - <Technical Skills>

Examples :

CHETANAS - Fresher - Hyderabad - B.Tech (CSE) - 2013 - 0 Years - C, JAVA

CHETANAS - Fresher - Hyderabad - B.Tech (CSE) - 2012 - 0 Years - C, C++, .NET

* You must apply exactly in the above mentioned format only. Otherwise, resumes will NOT be considered.

Please do not forget to furnish the following details in the body of your mail. This is very IMPORTANT.

Full Name | Date of Birth:
Highest Qualification | Branch | Year of Passout:
College Name | University Name:
Aggregate % in 10th:
Aggregate % in 12th:
Aggregate % in Graduation | Post-Graduation:
Your Technical Skills:
Any Courses/Certifications Completed:
Current Location:
Contact Email Id:
Contact Numbers:


for more details: http://www.javaken.com/forum/showthread.php?t=12391

Monday 17 June 2013

What is the difference between Iterator and ListIterator ?

What is the difference between Iterator and ListIterator ?
  
 Iterator:-
     An iterator over a collection.
     By using Iterator we can retrieve the elements from Collection Object in forward direction only.
     We can use Iterator to traverse Set and List and also Map type of Objects.

           Iterator    iterator = Set.iterator();
           Iterator    iterator = List.iterator();

    Methods in Iterator :
  •   hashNext()
  •   next()
  •  remove()


ListIterator:-
        An iterator for lists that allows the programmer to traverse the list in either direction, modify the list during iteration, and obtain the iterator's current position in the list. 
          A ListIterator has no current element; its cursor position always lies between the element that would be returned by a call to previous() and the element that would be returned by a call to next().
          But List Iterator can be used to traverse for List type Objects, but not for Set type of Objects.
                            ListIterator      listIterator = List.listIterator();
          i.e., we can't get List Iterator object from Set interface.
       Which allows you to traverse in either directions. That is List Iterators traverse two directions. So it has another methods hasPrevious() & previous() other than Iterator.
      
      Methods in ListIterator 
  •  hashNext()
  •  next()
  • previous()
  • hashPrevious()
  • remove()
  • nextIndex()
  • previousIndex()



What is the difference between Hashtable and Hashmap in Java Collections ?

What is the difference between Hashtable and Hashmap in Java ?

     • Hashmap allows the null values to be both of its keys and the values, while the hashtable do not allow the null values in data structuring.
    • The hashmap cannot have the duplicate keys in it that is why there keys must only be mapped with only the single value. But the hashtable allows the duplicate keys in it.
   • The hashmap contains an iterator which is basically fail-safe but the hashtable contains an enumerator, which is not fail-safe.
  • The access to hashtable is synchronized on the table while the access to the hashmap is not synchronized.

What is the difference between Enumeration and Iterator?

What is the difference between Enumeration and Iterator?

Enumeration

 Ø When the Enumeration interface is implemented by an object, that object can generate a sequence of elements.
 Ø This was introduced in JDK 1.0 .
 Ø The method hasMoreElements() will test if this enumeration contains more elements and the nextElement() returns the next element in the sequence (if there is at least one more to go).
Example:-
         Enumeration e = v1.elements();// v1 is an object of Vector
        while(e.hasMoreLements()){
        System.out.println(e.nextElement());
      }

Iterator

  Which allows iterating through elements of the collections objects that implement the Collections framework (such as ArrayList, LinkedList, etc.).

   Ø This was introduced in JDK 1.2 and replaced the Enumerator within the Java Collections Framework.
  Ø Unlike Enumeration, Iterator is fail-safe.This means that concurrent modifications (to the underlying collection) are not allowed when Iterator is used.
  Ø This is very useful in multi-threaded environments where there is always a risk of concurrent modifications.
  Ø In the event of a concurrent modification, the Iterator object will throw a ConcurrentModificationException.
  Ø Iterator has shorter method names compared to Enumerator.
  Ø Furthermore, iterator has the additional functionality of deleting elements during the iteration (which is not possible using Enumerator).
  Ø So, if there is a need to remove elements from the collection, Iterator is the only option that can be considered.

Example:-
      Iterator i = v1.elements();// v1 is an object of Vector
       while(i.hasNext()){
        System.out.println(e.next());

      }