Interview Questions and Answers - Order By Rating Q211. Should we do anything to avoid memory leaks in Java ? Core Java
Ans. Java has a intrinsic way of checking leaks and reclaiming memory called garbage collection. Moreover Java doesn't support pointer arithmetics , so there is very low comparative chance of memory leaks, compared to C,C++ Help us improve. Please let us know the company, where you were asked this question : Like Discuss Correct / Improve This question was recently asked at 'Whitesnow Software'.This question is still unanswered. Can you please provide an answer. Help us improve. Please let us know the company, where you were asked this question : Like Discuss Correct / Improve Asked in 1 Companies Q213. Is String mutable or immutable in Java ? Core Java
Ans. String is Immutable because of String Constant Pool. Help us improve. Please let us know the company, where you were asked this question : Like Discuss Correct / Improve Asked in 1 Companies Q214. What are different types of Polymorphism in Java ? Core Java
Ans. run time polymorphism Help us improve. Please let us know the company, where you were asked this question : Like Discuss Correct / Improve Asked in 1 Companies Q215. Can we assign the reference to this variable ? Core Java
Ans. No Help us improve. Please let us know the company, where you were asked this question : Like Discuss Correct / Improve Asked in 1 Companies Q216. What is the default port for smpt server ? Server
Ans. 25,465 and 587 Help us improve. Please let us know the company, where you were asked this question : Like Discuss Correct / Improve Q217. Have you ever changed Dojo library code ? Why ? Dojo
This question is still unanswered. Can you please provide an answer. Help us improve. Please let us know the company, where you were asked this question : Like Discuss Correct / Improve Q218. Do you think customizing library code for your own use, a good idea ?
This question is still unanswered. Can you please provide an answer. Help us improve. Please let us know the company, where you were asked this question : Like Discuss Correct / Improve Q219. Have you ever worked on migration from enterprise network infrastruscture to Cloud Infrastructure ? What problems did you face ? Infrastructure
This question is still unanswered. Can you please provide an answer. Help us improve. Please let us know the company, where you were asked this question : Like Discuss Correct / Improve This question is still unanswered. Can you please provide an answer. Help us improve. Please let us know the company, where you were asked this question : Like Discuss Correct / Improve Q221. How do you mock private methods using Mockito ? Mockito
Ans. We just declare the methods as protected and mark them with the annotation @visibleForTesting Help us improve. Please let us know the company, where you were asked this question : Like Discuss Correct / Improve Ans. Yes, using Power Mock. Help us improve. Please let us know the company, where you were asked this question : Like Discuss Correct / Improve Q223. differences between drop , delete and truncate Database
This question was recently asked at 'HCL Technologies'.This question is still unanswered. Can you please provide an answer. Help us improve. Please let us know the company, where you were asked this question : Like Discuss Correct / Improve Asked in 1 Companies Q224. How to deploy spring boot application without restart in prod env Spring Boot
This question was recently asked at 'HCL Technologies'.This question is still unanswered. Can you please provide an answer. Help us improve. Please let us know the company, where you were asked this question : Like Discuss Correct / Improve Asked in 1 Companies Q225. Hash map using/without using Java 8 Core Java
This question was recently asked at 'HCL Technologies'.This question is still unanswered. Can you please provide an answer. Help us improve. Please let us know the company, where you were asked this question : Like Discuss Correct / Improve Asked in 1 Companies Q226. Rest API crud operation using spring boot Spring Boot
This question was recently asked at 'HCL Technologies'.This question is still unanswered. Can you please provide an answer. Help us improve. Please let us know the company, where you were asked this question : Like Discuss Correct / Improve Asked in 1 Companies Q227. What is difference between Echo and Print ?
Ans. echo and print statements both are similar there is a slight difference between those both are output statements echo has no return value while print has value 1 echo takes multiple parameters but print takes one argument Help us improve. Please let us know the company, where you were asked this question : Like Discuss Correct / Improve Asked in 1 Companies Q228. How do you use cut command in unix ? Unix
Ans. cut command is used to extract the given number of characters and columns from a file Help us improve. Please let us know the company, where you were asked this question : Like Discuss Correct / Improve Asked in 1 Companies Q229. Can we optimize retrieval of the web content - html , css , images etc from the server ? Web
This question is still unanswered. Can you please provide an answer. Help us improve. Please let us know the company, where you were asked this question : Like Discuss Correct / Improve Q230. What happens when we access a website ? How are the different web content - html , images , css etc loaded on the browser ? Web
This question is still unanswered. Can you please provide an answer. Help us improve. Please let us know the company, where you were asked this question : Like Discuss Correct / Improve Q231. Can you name some of the browser caching techniques ? Web
This question is still unanswered. Can you please provide an answer. Help us improve. Please let us know the company, where you were asked this question : Like Discuss Correct / Improve Q232. Have you ever worked with Web Page optimization techniques ? Can you name some ? Web
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This question is still unanswered. Can you please provide an answer. Help us improve. Please let us know the company, where you were asked this question : Like Discuss Correct / Improve Q234. What are the points to consider while reviewing junits ? Junit
This question is still unanswered. Can you please provide an answer. Help us improve. Please let us know the company, where you were asked this question : Like Discuss Correct / Improve Ans. Throwable in java is a class that is the superclass of all exceptions and errors which may occurs in java program.It extends obcect class. Help us improve. Please let us know the company, where you were asked this question : Like Discuss Correct / Improve Asked in 1 Companies basic Q236. How do you test object construction or constructors using junit ? Junit
This question is still unanswered. Can you please provide an answer. Help us improve. Please let us know the company, where you were asked this question : Like Discuss Correct / Improve Q237. What is Defer Parsing JavaScript ? JavaScript
This question is still unanswered. Can you please provide an answer. Help us improve. Please let us know the company, where you were asked this question : Like Discuss Correct / Improve Q238. What is string pool and what is the use of intern() function ? Core Java
Ans. The Java String class intern() method returns the interned string. It returns the canonical representation of string. Help us improve. Please let us know the company, where you were asked this question : Like Discuss Correct / Improve Asked in 1 Companies Q239. How to delete a node from linked list if u do not have head and only have a pointer to the element which has to be removed ? Data Structure
This question was recently asked at 'LifCare'.This question is still unanswered. Can you please provide an answer. Help us improve. Please let us know the company, where you were asked this question : Like Discuss Correct / Improve Asked in 1 Companies Q240. How to make a collection thread safe? Core Java
This question was recently asked at 'Amodcs'.This question is still unanswered. Can you please provide an answer. Help us improve. Please let us know the company, where you were asked this question : Like Discuss Correct / Improve Asked in 1 Companies
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