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

Core Java Interview Questions

Questions Answers Views Company eMail

What collections you have worked on? Internal working of Hashmap?

Bravura Solutions,

1 2820

What design pattern you have used in your project? I answered Factory pattern, how it is implemented? What are its advantage? Do know about Abstract Factory?

Bravura Solutions,

2502

Can static methods be overridden?

Bravura Solutions,

5 9761

java Api provided try catch finally ,try catch(its ok) but why try finally and exception occured at try then how the flow is?

Naaptol,

1 5034

Why java does not supports multiple inheritance?

TCS, VSoft,

3 6141

what is associative array

Tech Mentro,

1 3496

what is the difference between static class and singleton class? can we create static class?

L&T, Octazen, Vamsi Labs,

2 6218

ublic class Java_Coding_Samples { public static void JavaHungr(NumberFormatException ae){ System.out.println("integer"); } public static void JavaHungry(Exception e){ System.out.println("string"); } public static void JavaHungry(ArithmeticException ae){ System.out.println("object"); } public static void main(String[] args) { JavaHungry(null); }

1 2738

what is ABSTRACTION and what are using in real time project?

iGate,

1 4003

For technical interview question please sir send me because tomorrow my interview

FactSet Systems,

1 4694

How to define a constant variable in Java?

TCS,

1 3135

java is pure object-oriented programming language?why it is platform independent.

1 2851

Why should we use java?

IBM,

1 3023

How many Java environments are there?

Phantom Technologies,

1 3018

What is Java Classloader?

Phantom Technologies,

1 2920

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Un-Answered Questions { Core Java }

What is listnode in java?

988

If a method is declared as protected, where may the method be accessed?

1012

What is definition and declaration?

1010

What is the use of hashmap in java?

1081

Is this valid in java ? Can we instantiate interface in java?

972

What is the instance of an object?

1187

What is meant by method overriding?

1105

What is the use of accept () method in java?

1090

Can inner class have constructor?

1038

What are the limitations of procedural programming approach?

1048

What is the range of a character variable?

986

Why is static used?

1023

What is the public method modifier?

1010

Who developed java?

981

Explain the inheritance?

966

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