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 4310

what are the purposes of native, transiant key words?

2 8158

Functionality of JVM?

Infosys,

7 31283

what is a static block?

4 8416

what are class,constructor and primitive data types?

IBM,

2 10303

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

Anshinsoft, Wipro,

6 20264

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

Technological University of the Philippines,

3 11030

What are different type of access modifiers?

3 10058

How do you set security in applets?

Wipro,

1 6041

Is JRE required to compile Java files ?

HCL,

4 16354

How to set the Heap size in Java ?

HCL,

2 12566

What is the life cycle of Thread ?

HCL, Varnar Softech,

12 42148

What is the format of Inner Class after it compiled?

1 5322

What is the use of anonymous inner classes ?

DELL, HCL,

12 30440

What is the use join() in Threads ?

HCL,

5 12671

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Un-Answered Questions { Core Java }

What is meant by binding in rmi?

1011

What are the advantages of functions?

921

Why can't you declare a class as protected?

1134

How can a gui component handle its own events?

1113

what is the purpose of the runtime class?

1065

Is main a keyword in java?

978

Can an object subclass another object?

1112

Which class cannot be a subclass in java?

1022

Explain Basics of OOP Language in java

1060

What are disadvantages of java?

1000

Explain what is encapsulation?

1083

Does every java program need a main?

997

What is nested class?

1000

What are 5 boolean operators?

1176

What is implicit object in java?

1079

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