What We Are Learn On This Post
Etisalat Software Solutions Interview Questions
- if you pass duplicate key to map what will happen?
- Diff b/w abstract class and interface?
- Diff b/w comparator and comparable?
- How to compare two database tables(clue: comparator, compare(), you have to compare database objects.)?
- How to set the timeout for the browser? (clue: restful client API.)?
- What workflow did you use in your project?
- why java? why not c & c++?
- In the written test they are asking sorting programs(bubble sort, quicksort,…)?
- What is time complexity? if you are going to implement sorting on your own which sorting you prefer? and why?
- What is the use of volatile and synchronized?
- What is serialization? have you implement serialization in your project?
- Programs on io streams?
- why we are using @qualifier?
- Diff b/w BeanFactory and ApplicationContext?
- Explain the IOC container?
- Programs on string manipulations? (they are expecting to solve by using regular expressions).
- How you have implemented polymorphism in your project?
- How you iterate map having key and list<values>?
- Diff b/w Iterator and ListIterator an Enumerator?
- What are all the collections are supporting ListIterator?
- How to make a non-synchronized map and list as synchronized(by using the collection method)?
- What is diff b/w collection and collections?
- Write the JUnit test case for the below scenario. read an array of elements into the list<>.
- What are all the modifiers we can use inside a method? (answer: only final)
- what is diff b/w spring-JDBC and hibernate?
- What are all the drawbacks of JDBC over hibernate?
- what are all the problems with inheritance?
- What is the use of a hibernate session?
- They have given one query in SQL and they are asking corresponding criteria API query?
- why we are using @transient in hibernate?
- what are all the inputs we are giving to SessionFactory?
- what we are writing in the hibernate-mapping file?
- what we are writing in the hibernate-configuration file?
- scenario: in a JSP page with 2 buttons, one for addbook and another is for showListOfBooks(by using spring and hibernate)?
- what is the use of @ComponentScan?
- what is the use of dispatcher servlet?
- what are all the pre-processing tasks done by DispatcherServlet?
- How to render excel and pdf view to the end-user(using poi and Itext API’s)?
- How to validate valid username and password in spring? for validating can I directly interact with dao without service?
- By default, the servlet container will handle multi-threaded applications, then why you are implementing multi-threading in your application?
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