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Core Java Interview Questions
Questions Answers Views Company eMail

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

 2 5134

what is use of threads how many ways to create thread

iTrust, Verizon,

3 9370

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

Huawei,

8 11559

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 3596

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)

 1568

What is JAVA? Why it is platform independent?

NIIT,

10 11490

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

 2 3122

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

 1614

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

NIIT,

1 6079

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 6225

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 6831

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

 3 4684

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

HSBC,

2 11463

diff. b/w JAVA and javascript...

NIIT,

3 5580

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

 3 12395

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Un-Answered Questions { Core Java }

Differentiate between postfix and prefix operators in java.

630

What is the java idl system?

574

List the different types of classloaders in java.

496

Explain the importance of finally over return statement?

598

How does class forname work in java?

472




Does java initialize arrays to zero?

495

What are the two parts of a conditional statement?

504

What are aggregate functions explain with examples?

515

Are arrays passed by reference in java?

479

How would you format a date in java? I.e. In the ddmmyyy format?

759

What is the use of join method?

566

Can a class have multiple subclasses?

572

What is a parameter in java?

537

What are different types of references?

520

Why do people says “java is robust”?

544

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