Core Java Interview Questions, Answers for Freshers and Experienced asked in various Company Job Interviews

Core Java Interview Questions

Questions Answers Views Company eMail

I/O blocking means?

1 3590

what are the purposes of native, transiant key words?

2 7194

Functionality of JVM?

Infosys,

7 29051

what is a static block?

4 7037

what are class,constructor and primitive data types?

IBM,

2 9013

what is an object and how do you allocate memory to it?

Anshinsoft, Wipro,

6 18310

How many ways can an argument be passed to a subroutine?

Technological University of the Philippines,

3 9764

What are different type of access modifiers?

3 8842

How do you set security in applets?

Wipro,

1 5273

Is JRE required to compile Java files ?

HCL,

4 14790

How to set the Heap size in Java ?

HCL,

2 10915

What is the life cycle of Thread ?

HCL, Varnar Softech,

12 38536

What is the format of Inner Class after it compiled?

1 4635

What is the use of anonymous inner classes ?

DELL, HCL,

12 26645

What is the use join() in Threads ?

HCL,

5 10742

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Un-Answered Questions { Core Java }

What are design patterns and please explain?

562

how its run?

556

What is the purpose of skeleton and stub?

573

What is mnemonic code?

522

Discuss about garbage collector in Java.

624

Where are the card layouts used?

598

What is jvm? Why is java called the platform independent programming language?

531

What is the purpose of the finalize() method?

694

Is string pool garbage collected?

530

Why is java called the platform independent programming language?

562

What is a loop java?

574

How does thread synchronization occurs inside a monitor? What levels of synchronization can you apply?

529

Why is it called boolean?

512

What are the data types supported by java?

535

Define a package.

557

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