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Core Java Interview Questions
Questions Answers Views Company eMail

what is use of marker interface? give me good example?

 2 5581

what is use of threads how many ways to create thread

iTrust, Verizon,

3 10017

Program to print 1 1 2 1 2 3 1 2 3 4 like that

Huawei,

8 12524

program to find 25 square = 625 here the 625 of last two digits is equal to 25, i don't know excatly what this type of number is called

Huawei,

1 3965

i need to know the website that i can compile and run a java code in online.(while system doesn't contain any jdk and jre)

 1822

What is JAVA? Why it is platform independent?

NIIT,

10 12830

i need to know the site which compiles and run the java program completely in online... thank you for your reply in advance

 2 3593

what questions are been asked ??? for interview in apti

 1881

Features of JAVA ? In which version of java synchronizedXXX() methods are included in Collections class.

NIIT,

1 6445

all are saying java doesn't support multiple inheritance but by default Object class is super class for all the user defined classes and we can extend atmost one class so each class can extend more than one class so java supports multiple inheritance?i am confused with this,pls any one explain me.

 4 6860

all are saying java doesn't support multiple inheritance but by default Object class is super class for all the user defined classes and we can extend atmost one class so each class can extend more than one class so java supports multiple inheritance?i am confused with this,pls any one explain me.

CFG,

8 8065

what is class.forname() and how it will be useful ?

 3 5259

how and when compiler knows that the Java code throws the checked Exception.

HSBC,

2 12033

diff. b/w JAVA and javascript...

NIIT,

3 6049

what is the difference between String s="hello"; and String s=new String("hello");?

 3 13073

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Un-Answered Questions { Core Java }

how does multithreading take place on a computer with a single cpu? : Java thread

908

Explain about anonymous inner classes ?

805

Is binary a low level language?

707

What is anti pattern in java?

724

What will happen if non-synchronized method calls a static synchronized method and what kind of lock it acquires?

748

How do you get length in java?

783

Who is the owner of java?

759

Which is faster string or stringbuilder?

709

What is abstract class constructor called?

793

What is methodological framework?

786

Can list have duplicates in java?

709

What is the difference between the jdk 1.02 event model and the event-delegation model introduced with jdk 1.1?

856

What does the “static” keyword mean?

817

What is the use of object and class classes?

791

What is the method to declare member of a class static?

771

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