CoolInterview.com - World's Largest Collection of Interview Questions & Answers, FAQs, queries, sample papers, exam papers, dumps, what, why, how, where, when questions
Our Services
Get 9,000 Interview Questions & Answers in an eBook.




Get it now !!
Send your Resume to 6000 Companies
Advertisements
Java Interview Questions

Below we have listed all the Java Interview Questions and answers. Feel free to comment on any Java Interview Questions or answer by the comment feature available on the page.

To buy an eBook containing 30,000 Interview Questions, with Answers, Click Here.
View All Java Interview Questions & Answers - Exam Mode / Learning Mode

Java is a programming language and computing platform first released by Sun Microsystems in 1995. There are lots of applications and websites that will not work unless you have Java installed, and more are created every day. Java is fast, secure, and reliable. Java is a programming language expressly designed for use in the distributed environment of the Internet. It was designed to have the "look and feel" of the C++ language, but it is simpler to use than C++ and enforces an object-oriented programming model.

Highly Recommended, Hand Picked Java Books


Previous 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 >> Next

Sort By : Latest First | Oldest First | By Rating

Question
Rating
View Answer
Have you ever used HashTable and Dictionary




4.6 Rating
View Answer
What is java virtual machine and what is its uses?
3.0 Rating
View Answer
What restrictions are placed on the values of each case of a switch statement?
4.4 Rating
View Answer
What is the purpose of finalisation?
4.8 Rating
View Answer
1)What are the actual functions of JVM?
2)When to use a class and when to use
an Abstract class?
3)what is the use of constructors other than creation of objects?
4)when to use constructors?
5)when to use Interface?
6)why java does not support pointers?
7)why multiple inheritance is not possible in java without using Interfaces?
3.1 Rating
View Answer
What is the difference between the Font and FontMetrics classes?
4.6 Rating
View Answer
what is servelet?

3.9 Rating
View Answer
Expain about the AJAX technology in Java that is very HOT in software market.
What is Jasper Report.?

4.8 Rating
View Answer
What is default Buffersize of any Bufferedclass?

4.6 Rating
View Answer
How we know a class is Serialized or not from a package

4.6 Rating
View Answer
What is the corresponding Layout for Card in Swing?
4.8 Rating
View Answer
What is the difference between Process and Threads

4.6 Rating
View Answer
Why we have used to in main method in JAVA this words
1)public
2)static
3)void
4)main
5)(String args[])
3.2 Rating
View Answer
What is the difference between Applet and japplet?
What are the traverses in binary tree?
Write down how will you create a Binary tree?
What is constructor and virtual function? Can we call a virtual function in a constructor? give example.


3.9 Rating
View Answer
What classes of exceptions may be caught by a catch clause?
3.1 Rating
View Answer

As the Swings have more advantages over the AWT.. Why still in market are they using AWTs??
plzz..i want answer..in many interviews they asked me the same.






























5.0 Rating
View Answer
What are three ways in which a thread can enter the waiting state?
4.7 Rating
View Answer
What is the range of the short type

4.5 Rating
View Answer
let say there are two interfaces like the following

interface int1{
int meth1();
}

interface int22{
int meth1();
}

ok then

i am implementing both of them in a calss as follows

class mycl implements int1,int2
{}

now as the rule says, if a class implements an interface it must complete its signature.
now my questions is that if i define meth1(), as that method is in both interface, may i know how can i define both of that methods.
please answer me

4.5 Rating
View Answer
What is a transient variable?
5.0 Rating
View Answer

Previous 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 >> Next

India News Network
Latest 20 Questions
Payment of time- barred debt is: (a) Valid (b) Void (c) Illegal (d) Voidable
Consideration is defined in the Indian Contract Act,1872 in: (a) Section 2(f) (b) Section 2(e) (c) Section 2(g) (d) Section 2(d)
Which of the following is not an exception to the rule, "No consideration, No contract": (a) Natural love and affection (b) Compensation for involuntary services (c) Completed gift (d) Agency
Consideration must move at the desire of: (a) The promisor (b) The promisee (c) The promisor or any other party (d) Both the promisor and the promisee
An offer which is open for acceptance over a period of time is: (a) Cross Offer (b) Counter Offer (c) Standing Offer (d) Implied Offer
Specific offer can be communicated to__________ (a) All the parties of contract (b) General public in universe (c) Specific person (d) None of the above
_________ amounts to rejection of the original offer. (a) Cross offer (b) Special offer (c) Standing offer (d) Counter offer
A advertises to sell his old car by advertising in a newspaper. This offer is caleed: (a) General Offer (b) Special Offer (c) Continuing Offer (d) None of the above
In case a counter offer is made, the original offer stands: (a) Rejected (b) Accepted automatically (c) Accepted subject to certain modifications and variations (d) None of the above
In case of unenforceable contract having some technical defect, parties (a) Can sue upon it (b) Cannot sue upon it (c) Should consider it to be illegal (d) None of the above
If entire specified goods is perished before entering into contract of sale, the contract is (a) Valid (b) Void (c) Voidable (d) Cancelled
______________ contracts are also caled contracts with executed consideration. (a) Unilateral (b) Completed (c) Bilateral (d) Executory
A offers B to supply books @ Rs 100 each but B accepts the same with condition of 10% discount. This is a case of (a) Counter Offer (b) Cross Offer (c) Specific Offer (d) General Offer
_____________ is a game of chance. (a) Conditional Contract (b) Contingent Contract (c) Wagering Contract (d) Quasi Contract
There is no binding contract in case of _______ as one's offer cannot be constructed as acceptance (a) Cross Offer (b) Standing Offer (c) Counter Offer (d) Special Offer
An offer is made with an intention to have negotiation from other party. This type of offer is: (a) Invitation to offer (b) Valid offer (c) Voidable (d) None of the above
When an offer is made to the world at large, it is ____________ offer. (a) Counter (b) Special (c) General (d) None of the above
Implied contract even if not in writing or express words is perfectly _______________ if all the conditions are satisfied:- (a) Void (b) Voidable (c) Valid (d) Illegal
A specific offer can be accepted by ___________. (a) Any person (b) Any friend to offeror (c) The person to whom it is made (d) Any friend of offeree
An agreement toput a fire on a person's car is a ______: (a) Legal (b) Voidable (c) Valid (d) Illegal
Cache = 0.015625 Seconds