[OneStopGATE] Digest Number 2008

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Digest #2008

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Top 50 Java Interviw Questions & Answers by "Neha" a.maheshi

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Top 50 Java Interviw Questions & Answers

Tue Jan 27, 2015 7:50 pm (PST) . Posted by:

"Neha" a.maheshi

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| JAVA INTERVIEW QUESTIONS |
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| | Download Free Interview Questions eBook of 500 Questions 

(If you do not have a Yahoo! account, you can get it by simply sending a blank email to CoolInterview-Subscribe@yahoogroups.com and confirm the verification email received. Once your email is confirmed, we will instantly send the download link to you.) |

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| Java Interview Questions |
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- What is internationalisation? How can you achieve in java? 
http://www.coolinterview.com/interview/5380/ 

 
- Why we can not override static method? 
http://www.coolinterview.com/interview/10778/ 

 
- What is the difference between instanceof and isInstance? 
http://www.coolinterview.com/interview/377/ 

 
- What is package? Define with example? 
http://www.coolinterview.com/interview/15284/ 

 
- What is the difference between an if statement and a switch statement? 
http://www.coolinterview.com/interview/474/ 

 
- What does the "abstract" keyword mean in front of a method? A class? 
http://www.coolinterview.com/interview/383/ 

 
- How will you pass values from HTML page to the Servlet? 
http://www.coolinterview.com/interview/770/ 

 
- Which Java operator is right associative? 
http://www.coolinterview.com/interview/1164/ 

 
- Explain working of Java Virtual Machine(JVM). 
http://www.coolinterview.com/interview/5652/ 

 
- How can we write our own arraylist without using collections? 
http://www.coolinterview.com/interview/5553/ 

 
- What is the difference between length and length() ? 
http://www.coolinterview.com/interview/15169/ 

 
- Is java a fully object oriented programming or not? if not why? 
http://www.coolinterview.com/interview/5666/ 

 
- Addition of two numbers using Bitwise operators. Reading An 2D array using single for loop 
http://www.coolinterview.com/interview/12560/ 

 
- Which class is extended by all other classes? 
http://www.coolinterview.com/interview/1107/ 

 
- What is the difference between List, Set and Map 
http://www.coolinterview.com/interview/5362/ 

 
- What is cohesion and coupling in java? 
http://www.coolinterview.com/interview/16138/ 

 
- Why java is not pure object oriented language? 
http://www.coolinterview.com/interview/12727/ 

 
- What is difference between & and && in java 
http://www.coolinterview.com/interview/10787/ 

 
- Can we serialize the static variable? 
http://www.coolinterview.com/interview/5527/ 

 

- How will you perform transaction using JDBC 
http://www.coolinterview.com/interview/5281/ 

 
- Meaning - Abstract classes, abstract methods 
http://www.coolinterview.com/interview/5655/ 

 
- Explain Garbage collection mechanism in Java 
http://www.coolinterview.com/interview/5644/ 

 
- What is Singleton class? 
http://www.coolinterview.com/interview/841/ 

 
- Given A = 1, B = 2, C = 3, D = 4 …… Z = 26, write a java standalone program to encode the word "TELEPHONE" into numbers. 
http://www.coolinterview.com/interview/13436/ 

 
- What is the default size of vector and StringBuffer? 
http://www.coolinterview.com/interview/5153/ 

 
- What is the difference between Java and J2EE? Is J2EE advanced version of Java? 
http://www.coolinterview.com/interview/15081/ 


 
- Access specifiers: "public", "protected", "private", nothing? 
http://www.coolinterview.com/interview/442/ 

 
- Explain RMI Architecture? 
http://www.coolinterview.com/interview/781/ 

 
- What is the difference between interface and abstract class ? 
http://www.coolinterview.com/interview/28279/ 

 
- What is Weak reference and Soft reference in java? 
http://www.coolinterview.com/interview/5483/ 

 
- can we declare multiple main() methods in multiple classes.ie can we have each main method in its class in our program? 
http://www.coolinterview.com/interview/5714/ 

 
- what is skeleton in java or J2EE?????? 
http://www.coolinterview.com/interview/11042/ 

 
- What are the disadvantages of using threads? 
http://www.coolinterview.com/interview/369/ 

 
- What are the main differences between jdk1.4 , jdk1.5 & jdk1.6? 
http://www.coolinterview.com/interview/15721/ 

 
- Have you ever used HashTable and Dictionary? 
http://www.coolinterview.com/interview/769/ 

 
- Can I execute or call one applet from another applet? If so then how??? Please Reply me... Thanks 
http://www.coolinterview.com/interview/12448/ 

 
- can the main() method be overloaded? or overrided? and what happens when we do so? 
http://www.coolinterview.com/interview/10781/ 

 
- Can we override Thread's run() method? 
http://www.coolinterview.com/interview/15851/ 

 
- What are the main differences between Java and C++? 
http://www.coolinterview.com/interview/459/ 

 
- What is the difference between the Font and FontMetrics classes? 
http://www.coolinterview.com/interview/579/ 

 
- Explain Java security model 
http://www.coolinterview.com/interview/5653/ 

 
- What is the difference between concat and append? 
http://www.coolinterview.com/interview/15168/ 

 
- What is the difference between InputStream/Outputstream classes? 
http://www.coolinterview.com/interview/808/ 

 
- What is the disadvantage of threads? 
http://www.coolinterview.com/interview/10792/ 

 
- What is the difference between exception and error? 
http://www.coolinterview.com/interview/819/ 


 
- How System.out.println() works? 
http://www.coolinterview.com/interview/10782/ 

 
- What is JDBC? Describe the steps needed to execute a SQL query using JDBC. 
http://www.coolinterview.com/interview/443/ 

 
- Explain Servlet and JSP life cycle 
http://www.coolinterview.com/interview/5700/ 

 
- How many different types of JDBC drivers are present? Discuss them. 
http://www.coolinterview.com/interview/447/ 

 
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[OneStopGATE] Digest Number 2007

One Stop GATE eBooks Guides  Discussions Group

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Digest #2007

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Walkin for QA Analyst At Hackett Group |  Walkin for IT Analyst @ HC by "Sruti" a.maheshi

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Walkin for QA Analyst At Hackett Group |  Walkin for IT Analyst @ HC

Thu Jan 22, 2015 7:41 pm (PST) . Posted by:

"Sruti" a.maheshi

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| Resume Submitter | Fresher Jobs | Government Jobs | Walk-ins | Exam Notifications | News |
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Walkin for QA Analyst At Hackett Group
http://www.vyoms.com/jobs/details/walkin-for-qa-analyst-at-hackett-group-32177.asp Walkin for IT Analyst @ HCL
http://www.vyoms.com/jobs/details/walkin-for-it-analyst-hcl-32176.asp Walkin for .net Developer At Secure Meters
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http://www.vyoms.com/jobs/details/walkin-for-linux-monitoring-engineer-32170.asp Walkin for .net Developer At Avesta
http://www.vyoms.com/jobs/details/walkin-for-net-developer-at-avesta-32169.asp Walkin for Content Developer
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