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  Difference between Enumeration and Iterator in java interview question and answer

This tutorial explains about what are the differences between Iterators and Enumeration and similarity of both interface which may be asked in a core java interview. Functionalities of both Iterator & Enumeration interfaces are similar that means both generates a series of all elements of the object which is to have its values iterated that can be traversed one at a time using next() method incase of Iterator and nextElement() method incase of Enumeration. The more powe...

   Java,Iterator,Enumeration     2012-05-01 07:41:52

  A boolean value interview question

Someone asked a question on StackOverflow, he was asked an interview question. The question is : Given 3 boolean variables a, b, c, return true if at least 2 out of the 3 are true. He gave the solution as follows :boolean atLeastTwo(boolean a, boolean b, boolean c) {    if ((a && b) || (b && c) || (a && c)) {        return true;    } else {        ret...

   bool,return,expression,conditional     2012-04-30 08:49:32

  Don't write on the whiteboard

I recently interviewed at a major technology company. I won't mention the name because, honestly, I can't remember whether I signed an NDA, much less how strong it was.I did well. Mostly because of luck. I normally step over myself when I interview. I guess I've improved over the years. Here are a few tips to ace your own interview.1. Don't write on the whiteboardWhen I interviewed at Palantir around 5 years ago, I had a lot of trouble with this. Yes, I knew next to nothing about compu...

   Interview,Preparation,Whiteboard,Note,Python     2012-01-11 11:31:32

  JavaScript interview questions

This post will cover the JavaScript questions I have encountered and have seen during my programming career. They will mainly focus on vanilla JavaScript though there are lots of excellent frameworks out there and many people are using them in their daily work. this keyword this keyword is an very important but easy to confuse concept in JavaScript since it is always referring to the calling object of the function. 1. What will be the output of below code snippet? function User(name) { this....

   JAVASCRIPT,ALGORITHM,THIS,CLOSURE     2019-03-09 07:05:46

  Bill Gates : Ctrl+Alt+Del was a mistake

Microsoft chairman Bill Gates admitted that Ctrl+Alt+Del command was a mistake when he was in a fund raising campaign at Harvard University last week. This command was initially designed to reboot the system. David Rubenstein, the Harvard fund raising campaign chairman, asked Bill Gates : "Why when I turn on my software or computer do I need to have my three fingers to press control,alt and delete? Whose idea was that?" The answer given by Bill Gates is : "Basically because when you turn your co...

   Bill Gates,Ctrl-Alt-Del,Mistake     2013-09-26 23:28:37

  Baidu may withdraw from NASDAQ

Baidu, the search engine giant in China, may withdraw from NASDAQ some day and then get re-listed on A-shares market in China. This message is conveyed by Robin Li, CEO of Baidu, on a Wednesday(Beijing time) interview. Baidu is now investing heavily on O2O(Online to Offline) service as it is an emerging market where all Internet giants in China are diving in. In addition to its own O2O products, which include delivery service Waimai and deals site Nuomi, it has invested in a number of othe...

   NASDAQ,ROBIN LI,O2O,BAIDU     2015-09-17 04:03:55

  Java Interview Questions

Currently there are many articles online which summarize the list of Java interview questions. Some cover lots of basic questions and some cover some specific questions in specific area such as multithreading. In this post, we will not cover the really basic questions, we will cover something different. For basic question, you can read Java Interview Questions。 Basic What is primitive data type? How many primitive data types in Java? What are they? -- A primitive type is prede...

   JAVA,SECURITY,INTERVIEW,CAREER,MULTITHREADING,QUESTION,JAVA INTERVIEW,JAVA CORE     2019-01-21 07:07:08

  Can a == true && a == false be true in JavaScript?

JavaScript is a weak typed language and it has a loose comparison feature where two objects/values of different type can be compared using == operator. This provides developers great flexibility and confusion at the same time.  Before understanding how == works in JavaScript, can you first answer the question in the post title? Can a == true && a == false be true in JavaScript? Normally, we would think that this expression will always return false since a can be either true or ...

   JAVASCRIPT,COMPARISON,INTERVIEW QUESTION,==     2018-03-25 03:39:43

  What I learned from Google - You Get Fifteen Years

four years ago I was in Mountain View, California, interviewing for a position with Google. It was an odd sort of interview.  Lots of puzzles, math-like challenges, and code.  Lots, and lots, and lots of code. What struck me at Google wasn’t the challenges.  Nor was it the office environment, the cafeteria, or the mini-swimming pool, all of which were impressive. No, what struck me were the people. All of the people I met — and I mean all of them — had this ...

   Career,Technology,Programmer,Transform,Lifetime     2011-12-06 02:27:04

  My secret Hobby: Applying for jobs

I have a probably unusual habit: I'm applying for jobs as programmer at least once a year. It 's not that I don't have a job, or that I don't like what I do, but since I am self employed and running my own company I have the feeling that I am coming out of touch of what the current job market is like, and so I started to apply for jobs at different companies once in a while. Just to keep in mind how this is like and for the fun of it.I think this is also a good training should I need to be emplo...

   IT,Career,Hobby,Job,How to     2011-08-26 02:41:47

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