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Java Related Interview Questions
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where u use Abstraction and Interface in real time

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3 9118

Difference between JDK, JRE, JVM

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what do you meant by Platform-Independent?

Persistent,

6 14013

Why Java is not purely object oriented?

Elitecore, Persistent, Reliance, Wipro,

50 80439

what do you meant by Runtime Polymorphism?

BVIMR, IBM, Persistent,

13 36707

How to call static method?

Epoch,

4 9067

Difference between ?System.out.println? and ?System.error.println??

Sai Softech,

8 28843

Difference between abstract class and Interfaces?

CTS, iFlex, PA Consulting, Sai Softech, Value Chain,

7 16940

what is the use of declaring constructor as private?

Cyient, IVY Technologies, Sai Softech, Virtusa,

5 15414

Difference between array and arraylist.

Arise Solution, Banca Sella, iFocus, NIC, Sai Softech, Solartis, TCS, Verizon,

23 157850

Difference between Hash Table and Hash Map?

Persistent,

10 23233

What is the difference between a Strut and a Class?

1 7987

What are the Internal servlets maintained by the web server?

Infosys,

1 7032

what are the CGI Programs?

5 7604

what is servlet and what you get when we use servlets?

GGK Tech, Satyam,

7 22423


Un-Answered Questions { Java Related }

What are the contents on web.xml in struts application ?

1056


What is the resourcebundle class?

997


Can we return resultset in java?

985


Hi frnds how to lock an user when he enter wrong credentials more than 3 time using java or j2ee tech take username and password in a bean no need to connect DB and validate give me some sample application code or links its urgent for me thanks in advance

2410


What is a constructor overloading in java?

1119


What is the difference between equals() and == in java?

1029


hi actully i hav form columns with origin and destination names .as like as i need to create one more column with name amount. my requirement is when i select origin and destination columns automatically i need to get amount from database.how can i. please tel me with relative code

2854


Can we extract main method from another class?

1019


What is a classloader in java?

1080


Write a java program to find the route that connects between Red and Green Cells. General Rules for traversal 1. You can traverse from one cell to another vertically, horizontally or diagonally. 2. You cannot traverse through Black cells. 3. There should be only one Red and Green cell and at least one of each should be present. Otherwise the array is invalid. 4. You cannot revisit a cell that you have already traversed. 5. The maze need not be in the same as given in the above example

2657


What is the difference between filters and interceptors ?

1291


What do you mean by an interface in java?

1093


How is declarative handling of exceptions done in struts ?

999


How can you inject java collection in spring?

500


What is lazy class?

475