Interview Questions

A thread is a lightweight subprocess, a smallest unit of processing. It is a separate path of execution. It shares the memory area of process.

As shown in the above figure, thread is executed inside the process. There is context-switching between the threads. There can be multiple processes inside the OS and one process can have multiple threads.

An abstract class is an incomplete class. An abstract class is defined with the keyword abstract . We cannot create an object of the abstract class because it is not complete. It sets a behavioral protocol for all its child classes.

File[] listFiles();

this method returns list of files stored in a directory.

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.

1. Initialization
2. At selection-screen
3. Start-of-selection
4. End-of-selection
5. Top-of-page
6. End-of-page
7. At line-selection
8. At user-command
9. At PF
10. Get
11. At New
12. At LAST
13. AT END
14. AT FIRST

Standard deviation measures total risk in stocks.

i enjoy the most learning new things like staff management,motivation,management,smart working etc. i enjoy the least free timing during my job.

If the price of a product rises, the demand for the substitute product increases.