Java Related Interview Questions, Answers for Freshers and Experienced asked in various Company Job Interviews

Package1 and Package2 both have a method name lets say "methodA" with different implementation. When I import both the packages in a java class how can I use both the methods?

Ericsson,

7 11336

How can you sort dates?

TCS,

2 9335

Why to give the file name same as the public class name in java?

3 7185

What happens when Two users requests for same action class? How the threads are controlled?

4 8993

What is a domain structure? Does include cluster(s) and server instance(s)?

Oracle,

3 10656

Is there any use of an abstract class which has no methods and no attributes?

Wipro,

1 4919

If your team member writes code with lots of static variables and static methods, will it cause any side effects?

KPIT,

3 7549

If I have 1000 objects and my requirement is to sort them quickly, then which collection would you recommend and why?

KPIT,

5 8913

I have a Person object with 5 variables and I want to store them in a file called Person.txt. What should I do?

KPIT,

3 6900

There is a Banking application. It has 2 types of account, Savings and Current. Write a method calculateInterest by passing an ArrayList of these account objects and calculate Interest accordingly. Write code for this situation

ABC, KPIT,

1 3564

Un-Answered Questions { Java Related }

List some of the design patterns used in the spring framework?

451

How to know howmuch data is truncated?

2387

What is the easiest way to set the classpath ?

1069

What is collection class in java?

1027

Is object a data type?

979

What does @bean annotation mean?

471

What are the different features of spring framework?

412

Write an algorithm program in java for the following question.. In a VLSI design techniques,they used rectangles to design circuits. EVery rectangle is to be placed according to x,y coordinates. Check whether or not two rectangles overlap each other. Here overlapping of rectangles is acceptable, if 1) one rectangle intersect with other. 2) one rectangle fully covers other. The time of algorithm should not exceed o(n logn).

2754

What is the full form of ioc?

409

What does persist mean in java?

1013

How do I enable java in safari?

1059

Define orm and its working in j2ee?

1060

Is an empty arraylist null?

1116

I don't have websphere installed on my web server how do I add to the websphere administration console ?

829

Is hibernate easy to learn?

447

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