public int compareTo(Object o){ Employee emp = (Employee) emp; return this.id - o.id;}I think this is what it should be...public int compareTo(Object o){ Employee emp = (Employee) o; return this.id - o.id;}, Wrong, it should be:public int compareTo(Object o){ Employee emp = (Employee) o; return this.id - emp.id;}. Most questions are asked on Senior and experienced level i.e. My top stressing things in software development are: Not JavaScript, this, CSS, Internet Explorer, but the 2 above. It is, therefore, important that you take some time to understand the answers to these questions and possibly do more research. What is so tricky about these question, to me they look most simplest question, which doesn't even qualify for Interviews. How does "has before" apply to volatile work? Make sure that you understand all Java concepts not just theoretically but with coding practice too. One of the tricky Java question I faced is "What is difference between Collection and Generics in Java", its not tricky because I don't know either collection or Generics but How can you compare Generics with Collection ? No problem Tom, thanks for dropping by, If you have not read already, you may find my article about 10 Questions to make Programming Interview Less Costly useful as well. Thanks for reading this article so far. Great questions, How about adding tricky questions related to programming exercise ? If you're looking for Spring Interview Questions & Answers for Experienced or Freshers, you are at the right place. It will print "Collection" because methods are static and so they are bonded during compile time and at that time only type information is available because object is created at runtime. I need some good Java interview questions and a few of these might help me out. While solving the question, being in a rush, I hadn’t seen the comma ; right before the curly brace {. not sure but you can check that by running it yourself. Because b is a global variable with the value 0, the typeof b evaluates to 'number'. If yes, what do you think it will produce on console as output?Compile it and run it. There are 2 phases behind executing this snippet. In this post, you will find 7 at first sight simple, but tricky JavaScript interview questions. Hi Ankur, Thanks for pointing out, you should read opposite i.e non static variable can not accessible from static context. To what evaluates typeof a and typeof b in the following snippet: Let’s look at the line 2: let a = b = 0. Why compareTo() should be consistent to equals() method in Java? In another interview, my friend was asked this question little differently, Can we store BigDecimal class in TreeSet? I know it’s unfair. Q #1) What is JavaScript? please tell me with example. Program Example, How to convert float to int in Java? 7. 6.0 and 6.00 will not be equal, but compareTo() will return zero if both objects are compared. Actually static variables are always accessible in non static context however the reverse is not true. (You can do this BTW)Good answers to some common questions, I look forward to some trickier questions. Java Programming tutorials and Interview Questions, book and course recommendations from Udemy, Pluarlsight etc. Though most of the classes will be equal if there compareTo() return true e.g. Exam... Error: could not open 'C:\Java\jre8\lib\amd64\jvm.... Avoid ConcurrentModificationException while loopin... How to find highest repeating word from a text Fil... 10 Must Read Books for Coders of All Level, 10 Framework Java Developer Should Learn in 2018, 10 Books Java Programmers Should Read in 2018, 10 Open Source Libraries and Framework for Java Developers, Top 10 Android Interview Questions for Java Programmers, 5 Books to Learn Spring MVC and Core in 2017, 12 Advanced Java Programming Books for Experienced Programmers. Its www.preparestreet.com. obviously No, because of above reason, BigDecimal class can produce unexpected behavior when stored in SortedSet or SortedMap. Good luck in your interview. Some unknown people put you on the edge to see what you’re made of. Most of the tricky Java questions comes from confusing concepts like function overloading and overriding, Multi-threading which is really tricky to master, character encoding, Since these questions are less common, there is good chance that many Java developer doesn't know about it. Some tricky questions to test your programming skills. The explanation of the last question is little bit confusing. Still, they could be asked. The interviewer replied: “Because we need people that have good attention to detail.”. Java Tricky Output Questions. The above code is equivalent to the following: for() increments i variable until 4. According to research, The average salary for Spring ranges from approximately $35,011 pa. Hungry for more Java Interview Question and Answer post, check out these articles, you can not override a private or static method in Java, Can you override a private method in Java, why multiple inheritances are not supported in Java, why you can not access a non-static variable from static method, Java Interview Guide: 200+ Interview Questions and Answers, 18 Java design pattern question asked in interviews, 10 Java coding interview questions answer for 2  to 4 years experience, Top 21 Most Frequently Asked Java Questions and Answers, 133 Core Java Interview Questions from last 5 years, Top 50 Multithreading and Concurrency Interview Questions, 21 Frequently asked SQL queries from Java Interviews, 75 Coding Questions to Crack Any Programming Interview, 100+ Data Structure and Algorithm Questions, My Favorite books to learn Java Programming in depth, 10 Questions to make Programming Interview Less Costly. 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