Interview Questions

For inserting, deleting, and locating elements in a Map, the HashMap offers the best alternative. If, however, you need to traverse the keys in a sorted order, then TreeMap is your better alternative. Depending upon the size of your collection, it may be faster to add elements to a HashMap, then convert the map to a TreeMap for sorted key traversal.

Automated testing cannot replace manual testing because of following reason:

- Automated testing cannot replace the analytical skills required to conduct testing. It can only enhance or supplement manual testing,

- Through manual testing, information can be gathered about the application, and real-time decisions can be made about how to enhance a test that would be too difficult to program into an automated script.

- We need a manual tester to analyze and maintain the automated scripts after they can run.

Here by this question the employer need to know do you have any computer skills for managing an admin's job.

Example Answer :

I'm proficient with Microsoft Office suite including Word, Excel, and Power Point. I'm very comfortable using these programs and have a lot of experience doing so in my previous job roles.

It is the ability of an object to behave differently on different situations for the same message.

Standard deviation measures total risk in stocks.

Constructor is not a special method.

Constructor is block of code that is executed automatically whenever object of the class is created.

- Because of the block nature, multiple statements are processed at once thereby improving performance. 

- PL/SQL handles exceptions on catching which, action can be taken. 

- PL/SQL is highly portable as it works with all procedural languages and is highly secured because of privileges.

Interface data is static data why bcoz interface supports multiple inheritance.

if inteface data is non-static then there is chance for replication of the data (bcoz of replication of data ambiguity problem occurs )