Aatul Palandurkar

Recently I had a chance to visit Hyderabad again for Java Blogger Meet organized by Oracle, India on the occasion of very auspicious as Java turns 20. First of all I would like to thanks Oracle for all expenses paid trip including flight tickets to meal and cab fare too.

There were many rumours when Oracle acquired Sun Microsystems like Oracle will not looks after Java and Java will lose its importance and all but Oracle has always tried to groom Java and Java Community. Oracle always trying and helping people to get acquainted with Java. Oracle has planned a major release for Java every 2 years that means if Java 8 was launched in the year 2014 then Java 9 will be there in market by the year 2016. Many features are added to Java till now and many will come up in future.

In the journey of 20 years Java has grown from Oak to Java 8 and still counting. Java is programming language of future but now we can say that it has grown like Oak tree and will last for minimum 200 years more. I am using Java from Java 1.4.2. As Java turns 20 we celebrated the auspicious occasion and cut the cake, which was very well designed.

Java Bloggers Meet (7)

It was a very nice event overall wherein we get a chance to meet and hear many high profile people and community members like Sanket Atal (Group Vice President, Research and Development, Oracle), Shreekanth Narayanan (Director, Development Java Platform Group, Oracle), Vandana Shenoy (Director, Corporate Communications, Oracle) and Harshad Oak is after a long time. Harshad Oak is only Java Champion in India and his last name is similar to first release of Java and the coincidence he is the first Java Champion from India. We also got a chance to meet Bot-so which is a small robot who interacts with user via social network like Twitter developed by Debraj Dutta and team from Edifixio.

Java Blogger Meet, Oracle IDC, Hyderabad

Java Blogger Meet, Oracle IDC, Hyderabad

The main thing I have understood after the meet that Oracle is committed to Java from depth of heart so as Java community and Oracle is ready to help Java community in various ways. Java will remain number 1 programming language for centuries and my great great grand children may also be working on Java 1000 for spaceships or something like that. I will be there with Java and Java Community and will help them in all possible ways specially students, freshers and professionals.

If one face any difficulty in Java from any part of the globe, please feel free to contact me and will love to help you out and if something is there which I may not be answer Java Community and Oracle is also with us to answer all your queries. So if you are looking for a secured career be a Java geek and have a great future.

Objectives:

  • What is HashMap?
  • What is HashMap in Java?
  • What is HashTable?
  • What is HashTable in Java?
  • What are the differences between HashMap and HashTable?
  • What are the differences between HashMap and HashTable in Java?

HashMap vs HashTable

1. HashMap is non-synchronized. HashTable is synchronized.

2. HashMap is not thread safe. HashTable is thread safe.

3. HashMap allows one null key and any number of null values while HashTable do not allow null keys and null values in HashTable Object.

4. HashMap object values are iterated using iterator. HashTable is only class other than Vector class which uses enumerator to iterate values of HashTable object.

5. The iterator in HashMap is fail-fast iterator while enumerator for HashTable is not.

6. HashMap is much faster and uses less memory than HashTable.

7. HashMap is subclass of AbstractMap class. HashTable is subclass of Dictionary class which is obsolete in 1.7 and not in use anymore.

 

Dear all,

I am very happy to inform you that I am selected as Member of NetBeans Dream Team. It is an honor to be a member of NetBeans Dream Team and I am thankful of NetBeans Dream Team and NetBeans Team for considering me and my efforts towards Java and NetBeans, feeling honored since there are around only 50 people selected till now from all over the world and I am the 3rd Indian to be a member of NetBeans Dream Team after Mr, Tushar Joshi (Nagpur, India) and Mr. Rajmahendra Hegde (Chennai and Hyderabad, India).

11th Feb. 2015 was a great day for me, we had festival (Birth Anniversary) of Saint Gajanan Maharaj (Shegaon, Maharashtra, India) and same day only I have received mail with subject as Invitation to join NetBeans Dream Team!. This means all my faith in our saint and dreams have come true.

I am feeling more responsible now and I understand my responsibilities and will work as per guidelines of veteran members of NetBeans Dream Team. I am already working with a new JUG near Pune (Maharashtra, India) that is JUG Nashik (Maharashtra, India)  and will be there for few days with them from 13th Feb 2015. I will be working with 3 JUGs for now that is JUG Nagpur, JUG Pune and JUG Nashik.

For this, I would love to give credit to my family and specially to my Guide cum Mentor, Mr. Tushar Joshi. They have always encouraged me a lot even when many times I could not give them enough time due to hectic schedule of training session all over India. Also I would love to say thanks to my little son for coming in our life as a good luck charm only few days back. My wife was in also worried whether I will be there or not at the time of labor but never complained and said you just do your job, I will take care of everything.

IMG-20141227-WA0040

Conducted Seminar on Java and Android at Besa Polytechnic, Nagpur on 27th Dec. 2014.

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Conducted 5 Days Training on Android, HTML5 and WordPress at Tulsiramji Gaikwad Patil College of Engineering & Technology, Nagpur from 22nd Dec. 2014 to 26th Dec. 2014

It was Training cum Internship program for students and there were more than 250 students who attended this program. We have conducted 3 parallel sessions and it was again a good experience with the students of TGPCET, Nagpur.

IMG-20141218-WA0029

Conducted a Seminar at Dr. B. V. Hiray M.B.A. and M.C.A. College, Malegaon, Near Nashik (Maharashtra – India) on 18th Dec. 2014.

It is always pleasure to share your experiences with students. After the seminar conducted technical interviews of the M.C.A. students as a part of placement and internship drive by SSIT.

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Conducted 3 days Live and Online Android Training at Oracle Mumbai from Oracle Park, Pune dated 15th Dec. 2014 to 17th Dec. 2014. It was a great experience to conduct training for the giant like Oracle. It is always pleasure and fun working with Oracle people. After the completion of the training received great feedback from all the attendees, glad to see that people out there liked training methodology. I always love to share the knowledge and experiences with the people.

Android is the most popular mobile operating system and booming day by day. Everyday huge number of Android mobile devices are getting activated and people are looking for different application to ease their life and to do some day to day task on the go. Many important things can also be done with mobile device like paying bills, money transfer and so on.

Many people who do not have time to go and attend classes due to college, work or some other reason can attend Online Android Training seating at their own place and as per their convenience.

Recording of actual Online Android Training :

The video is recorded during the actual Online Android Training Session 1. If you are looking for Online Android Training, please go through it and let us know if you are interested in the same and feel free to contact me at aatul@ancyber.com

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Thanks a lot Oracle and JCP for sending this kit, received kit today at my office in Pune, India via DHL courier with a huge box packing which made me think what is there in box and really made my day.

The kit contains :

  • iPad case : 1
  • Stickers : 100
  • Duke Key tags : 75
  • Posters : 50

All this makes this kit a great giveaway or gift. You people saved my money too, I was about to bye an case soon.

All the Duke and Java Community Celebrating 15 years key tags and rest of the material is too good.

Thanks a lot Oracle and JCP again. I will make sure that I distribute them among all the Java people out here.

CDAC-GTU-BISAG WIMC Batch

BISAG-CDAC-GTU WIMC Batch

Conducted Java Training at CDAC for M.Tech. students at Bhaskaracharya Institute of Space Applications and Geo-Informatics (BISAG), Info City, Gandhinagar, Gujrat under Gujrat Technical University (GTU). Seen a great collaboration between BISAG, CDAC and GTU, never seen such program for students where are students getting chance to work on research projects and all.

During the training covered Java, Java EE, Struts, Hibernate, Spring, EJB, RMI, Networking, etc. all in 5 days daily 8 hours. It helps a lot to cover that much if you use NetBeans for training Java and other Java related technologies like JavaEE, Struts, Hibernate, Spring, HTML5, etc. Students were good.

I feel honored after receiving Diwali Gift and Dinner party from students. I would also like to thanks them for Akshardham visit and really love the fountain and water show at Akshardham. There are only 4 water shows like that all over the world. I really enjoyed a lot guys thanks a lot. And I would like to share the thing that you are doing for physically and mentally challenged people, I have never seen this from students.

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Atul Palandurkar

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