Java Hungry

Top 5 Cloud Computing Companies in the World

Being a Java Professional and hence an ardent contributor in the IT industry, you have to be updated with the latest tech buzz in and around. In This century IT has gained the massive impetus because it upgrades itself with the newest technology. Cloud Computing had emerged in the last few years and is expected to hold the stakes high for some time in the future. Everything that you imagine as an application is kept in a Cloud today! Primarily there are three categories of the Cloud service: SaaS (Software as a Service), IaaS (Infrastructure as a Service) and Paas (Platform as a Service). As in the software industry, the Pioneers or the so called giants of the IT world had jumped as service providers of cloud and hence they have extended cloud as a service. The smaller companies and firms benefit from the cloud services where they can keep their focus upon meeting their business needs without worrying about the cost factor, infrastructure, hardware and managing expensive data centers. As an IT professional you can imagine the impact of cloud by simply considering the fact that every application that is making the rounds in the market is deployed in a cloud. So being a Java Developer/Programmer you must know the artifacts of cloud computing as you might be contributing towards the new technology in the near future. Here we are going to discuss about a few cloud service providers who have become the leaders.

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Amazon Web Services

5 cloud computing comapanies in the world : Amazon web services

The world’s biggest online retailer, Amazon

Ten Phone Interview Tips For Candidates:Mastering Phone Interview

All the young and budding technical aspirants who are dreaming for a successful venture into the software domain should know and understand the telephonic interview process. So why do you think a standard company would even arrange for a telephonic interview in the first place? It’s certainly not about fooling around and so you should take it very seriously. Please come out of the fallacy of imaginations if anything prevails like you can just be on the bed while attending a telephone interview, you can just google out the answers, you can have a cheat sheet in your hand and you can just browse through it as you take the interview. Please get rid of the misconceptions to actually end up having a job in your hand rather than getting filtered out at the very initial level. Most of the standard software companies nowadays have the filter criteria of having a telephonic interview round as the very first round. They can obviously find out enough and whatever needed from the telephonic interview.So lets discuss the ten phone interview tips.

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Here are a few phone interview tips to be able to be a perfect fit for the telephonic interview:

Know about  Yourself

Interviewer most likely to know more about you and your behavior . You should write your strengths and weaknesses , accomplishments and answers to the most generally asked questions . This interview tip will help you to gain confidence and leave a good impression on the interviewer.
Also always keep smiling during interview , this leaves a positive tone on the interviewer.

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Getting the Basics Right

How TreeMap works in java : 10 TreeMap Java Interview Questions

One of the commonly asked  Java Developer Interview Questions is How TreeMap works in java or internal implementation of TreeMap. The problem with the candidate that he/she knows what TreeMap/TreeSet do but not How ?  We have already discussed  other popular  java developer interview questions like how hashmap works in java , how hashset works in java , what is the difference between hashmap and hashtable . So let us discuss the working of TreeMap.

What is a Tree Map ?

Treemap class is like HashMap which stores key- value pairs . The major difference is that Treemap  sorts
the key in ascending order.

According to Java doc  :

Treemap is sorted according to the natural ordering of its keys, or by a Comparator provided at map creation time, depending on which constructor is used.
This implementation provides guaranteed log(n) time cost for the containsKey, get, put and remove operations. Algorithms are adaptations of those in Cormen, Leiserson, and Rivest's Introduction to Algorithms.

How TreeMap works in java ?