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Java based interview questions you can expect from Amazon, Yahoo, Microsoft, Goldman Sachs, IBM, Adobe

(Last Updated On: June 20, 2010)

Java based interview questions you can expect from Amazon, Yahoo, Microsoft, Goldman Sachs, IBM, Adobe

From: http://www.careercup.com/page?pid=java-interview-questions&n=1 (there are over 4 pages worth of info)

Interview Question for Testing / Quality Assurances about Java
Raj Kashyap on May 24, 2010

You have been asked to deploy a number of robotic domestic helpers (RDH) into a large room to remotely clean it as they move around it. This room is currently rectangular in shape and must be navigated by the RDH’s in order to successfully clean the room.
A RDH position and location is represented by a combination of x and y co-ordinates and a letter representing one of the four cardinal compass points. The room is divided up into a grid to simplify navigation. An example position might be 0, 0, N, which means the RDH is in the bottom left corner and facing North.
In order to control a RDH the operator sends a simple string of letters. The possible letters are ‘L’, ‘R’ and ‘M’. ‘L’ and ‘R’ makes the robot spin 90 degrees left or right respectively, without moving from its current spot. ‘M’ means move forward one grid point, and maintain the same heading.
Assume that the square directly North from (x, y) is (x, y+1).
INPUT:
The first line of input is the upper-right coordinates of the arena, the lower-left coordinates are assumed to be 0,0.
The rest of the input is information pertaining to the RDH’s that have been deployed. Each RDH has two lines of input. The first line gives the RDH’s initial deployed position, and the second line is a series of instructions telling the RDH how to navigate around the room.
The position is made up of two integers and a letter separated by spaces, corresponding to the x and y co-ordinates and the RDH’s orientation.
Each RDH will be finished sequentially, which means that the second RDH won’t start to move until the first one has finished moving.
OUTPUT
The output for each RDH should be its final co-ordinates and heading.
INPUT AND OUTPUT
Test Input:
7 6
2 4 E
MMRMMRMRRM
3 4 N
LMLMLMLMM
Expected Output:
4 2 E
43e3 5 N

Tags: Java » Testing / Quality Assurance
Question #2302665 (Report Dup) | Edit
New Company Interview Question for Software Engineer / Developers about Arrays Java
Tee on May 23, 2010

Given a sorted array of n integers that has been rotated left or right by k places, give an algorithm that searches and finds an element in the array in log n time.
Example Input: 8 9 0 1 2 4 5 6 (sorted array rotated right by 2 places)
4

Tags: New Company » Arrays Java » Software Engineer / Developer
Question #2319661 (Report Dup) | Edit
Akamai Interview Question for Software Engineer / Developersabout Java
RanTexas on April 12, 2010

What are features of optimum Java code.
2
[Full Interview Report]

Tags: Akamai » Java » Software Engineer / Developer
Question #1760881 (Report Dup) | Edit
Sabre Holdings Interview Question for Software Engineer / Developers about Java
nobody on April 06, 2010

Questions over spring and hibernate. Explain Spring framework and hibernate concepts. discuss using spring and hibernate together.
1
[Full Interview Report]

Tags: Sabre Holdings » Java » Software Engineer / Developer
Question #1753878 (Report Dup) | Edit
USAA Interview Question for Software Engineer / Developers aboutJava
nobody on March 31, 2010

Explain what is in a deployment descriptor file? give an example of a deployment descriptor
2
[Full Interview Report]

Tags: USAA » Java » Software Engineer / Developer
Question #1754857 (Report Dup) | Edit
USAA Interview Question for Software Engineer / Developers aboutJava
nobody on March 31, 2010

Explain what is defined in the .jar, .ear, and .web files for a J2EE application?
1
[Full Interview Report]

Tags: USAA » Java » Software Engineer / Developer
Question #1725855 (Report Dup) | Edit
Goldman Sachs Interview Question for Software Engineer / Developers about Java
cuppanomics on March 30, 2010

Get all information about all threads running. And also where exactly a particular thread is blocked during execution.
1
[Full Interview Report]

Tags: Goldman Sachs » Java » Software Engineer / Developer
Question #1729798 (Report Dup) | Edit
Goldman Sachs Interview Question for Software Engineer / Developers about Java
cuppanomics on March 30, 2010

Share knowledge about JVM parameters/variables.

[Full Interview Report]

Tags: Goldman Sachs » Java » Software Engineer / Developer
Question #1764769 (Report Dup) | Edit
Goldman Sachs Interview Question for Software Engineer / Developers about Java
cuppanomics on March 30, 2010

How will you go around building a pool of threads in Java? Best way to maintain the thread count once a thread in the pool finishes execution?

[Full Interview Report]

Tags: Goldman Sachs » Java » Software Engineer / Developer
Question #1716771 (Report Dup) | Edit
A Small Gaming Company Interview Question for Software Engineer / Developers about Java
biggied88 on March 14, 2010

How do you get the request URL in a servlet?
5
[Full Interview Report]

Tags: A Small Gaming Company » Java » Software Engineer / Developer
Question #920674 (Report Dup) | Edit
A Small Gaming Company Interview Question for Software Engineer / Developers about Java
biggied88 on March 14, 2010

what will happen if you do not use hashcode() to override a equals()?
3
[Full Interview Report]

Tags: A Small Gaming Company » Java » Software Engineer / Developer
Question #935674 (Report Dup) | Edit
Adobe Interview Question about Java
Anonymous on March 11, 2010

What is the difference between >> and >>>?
3

Tags: Adobe » Java
Question #751696 (Report Dup) | Edit
Adobe Interview Question about Java
Anonymous on March 11, 2010

What is transient variable?
3
[Full Interview Report]

Tags: Adobe » Java
Question #712689 (Report Dup) | Edit
Adobe Interview Question about Java
Anonymous on March 11, 2010

Why would you use the JSPs and JavaBeans in a web application?
2
[Full Interview Report]

Tags: Adobe » Java
Question #708688 (Report Dup) | Edit
A Small Gaming Company Interview Question for Software Engineer / Developers about Java
biggied88 on March 09, 2010

Explain what is a weak reference. How do you declare a weak reference? Why would you implement a weak reference – versus a strong reference?
2

Tags: A Small Gaming Company » Java » Software Engineer / Developer
Question #539703 (Report Dup) | Edit
A Small Gaming Company Interview Question for Software Engineer / Developers about Java
biggied88 on March 08, 2010

What is the purpose of the session() in a servlet?
2
[Full Interview Report]

Tags: A Small Gaming Company » Java » Software Engineer / Developer
Question #442681 (Report Dup) | Edit
A Small Gaming Company Interview Question for Software Engineer / Developers about Java
biggied88 on March 08, 2010

Can you have mutliple instances of a database running in hibernate?

[Full Interview Report]

Tags: A Small Gaming Company » Java » Software Engineer / Developer
Question #449663 (Report Dup) | Edit
Home Depot Interview Question for Software Engineer / Developersabout Java
biggied88 on March 04, 2010

what is the great advantage of using hibernate(or any ORM) vs. direct peristence
1

Tags: Home Depot » Java » Software Engineer / Developer
Question #422953 (Report Dup) | Edit
IBM Interview Question for Software Engineer / Developers aboutJava
biggied88 on March 04, 2010

Explain the different types of EJBs

[Full Interview Report]

Tags: IBM » Java » Software Engineer / Developer
Question #421690 (Report Dup) | Edit
IBM Interview Question for Software Engineer / Developers aboutJava
biggied88 on March 04, 2010

What does the web server contain? what does the application server contain? Basically, explain how the tomcat server works different then like a JBOSS server

[Full Interview Report]

Tags: IBM » Java » Software Engineer / Developer
Question #421689 (Report Dup) | Edit
Goldman Sachs Interview Question for Software Engineer / Developers about Java
bizz on March 04, 2010

Implement a Singleton
4
[Full Interview Report]

Tags: Goldman Sachs » Java » Software Engineer / Developer
Question #422682 (Report Dup) | Edit
Home Depot Interview Question for Software Engineer / Developersabout Java
biggied88 on March 03, 2010

Can you describe the differences between java 5 and java 6. Also, can you describe some of the newer enchancements in java from java 1.4 to java 5.
4
[Full Interview Report]

Tags: Home Depot » Java » Software Engineer / Developer
Question #417666 (Report Dup) | Edit
Home Depot Interview Question for Software Engineer / Developersabout Java
biggied88 on March 03, 2010

Can you identify 10 different Java APIs and explain what each is used for
1
[Full Interview Report]

Tags: Home Depot » Java » Software Engineer / Developer
Question #416425 (Report Dup) | Edit
IBM Interview Question for Software Engineer / Developers aboutJava
biggied88 on March 03, 2010

Interview for a mid-level java developer on one of their product R&D teams:
Can you explain the use of web application frameworks in java development. Discuss, how they work, why they are used, what they have done to revolutionize java development in the last few years. Can you explain the difference between Spring and Struts. Can you explain the similarity between the two.

Tags: IBM » Java » Software Engineer / Developer
Question #417120 (Report Dup) | Edit
Amazon Interview Question for Software Engineer / Developersabout Java
biggied88 on March 03, 2010

How do you write a de-constructor in Java? Explain how is it used in programming and how Java handles this issue.
3
[Full Interview Report]

Tags: Amazon » Java » Software Engineer / Developer
Question #416365 (Report Dup) | Edit
Amazon Interview Question for Software Engineer / Developersabout Java
biggied88 on March 03, 2010

How does the Collections API handle collisions? How does the API handling making the collection “some-what” collision safe?
Explain- which collection does this affect and the best way to deal with it.
Also explain, the most common senario that causes this issue- hint* one is in threading(how can this be caused).
4
[Full Interview Report]

Tags: Amazon » Java » Software Engineer / Developer
Question #417089 (Report Dup) | Edit
Yahoo Interview Question for Software Engineer / Developers aboutJava
aquila.25 on February 27, 2010

What is Spring IOC?
3
[Full Interview Report]

Tags: Yahoo » Java » Software Engineer / Developer
Question #414187 (Report Dup) | Edit
Yahoo Interview Question for Software Engineer / Developers aboutJava
aquila.25 on February 27, 2010

Explain hashcode() and equals() methods? When would you override these methods? What does the hashcode() method in the Object class do?
5
[Full Interview Report]

Tags: Yahoo » Java » Software Engineer / Developer
Question #414186 (Report Dup) | Edit
Microsoft Interview Question about Java
vimit on February 18, 2010

How do you write a ping routine in Java
4

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