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 will happen if a thrown exception is not handled?

ABB, Akamai Technologies, Infogain,

1025

In Java list the methods that can be overridden?

Accenture,

1017

What do you mean by stack?

Accenture,

1164

Explain the term virtual machine?

Adobe,

1053

What is role of void keyword in declaring functions?

Adobe,

1055

Define array. Tell me about 2-D array.

Agilent,

1059

Give an example of call be reference significance.

Agilent,

1035

In case of inheritance what is the execution order of constructor and destructor?

Agilent,

1134

What is the difference between a vector & an array list?

Agilent,

1172

Differentiate between nested and inner class in java.

Akamai Technologies,

1010

'A class is a template for an object' explain this statement.

Akamai Technologies,

1060

Define Multiprogramming and Multiprocessing in java.

Akamai Technologies,

1158

Explain an algorithm to find depth of a binary tree.

Akamai Technologies,

1046

Given a singly linked list, how will you print out its contents in the reverse order? Can you do it with consuming any extra space?

Akamai Technologies,

994

How to declare objects of a class ?

Akamai Technologies,

1082

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Un-Answered Questions { Core Java }

What is a pattern what is an anti pattern?

979

How concurrent hashmap works?

1188

Explain about transient variables in java?

1104

What is tcp ip in java?

1122

How do I print a “?

1002

What are the library functions in java?

1051

Why do we need hashset in java?

1054

What is lazy programming?

1046

What is the meaning of flag day?

1025

What is the symbol for average?

1032

Which package is used for pattern matching with regular expressions?

1121

How many bytes are a float?

987

What is the difference between class & structure?

1237

What are the basic control structures?

996

Hi.... I applied for the post of scientific officer/Engineer-SB(Programmer).Please post the syllabus and sample papers.

2002

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