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

Core Java Interview Questions

Questions Answers Views Company eMail

State one difference between a template class and class template.

HAL,

1118

What are the Class Libraries ?

Wipro,

1090

What do you understand by a Static Variable?

CGI,

1274

Differece between class and generic class?

Tech Mahindra,

1096

What are the Static and Dynamic Variables? Differentiate them.

CGI,

1164

What are the methods available in a class?

1130

What a static class can contains?

1203

What is a locale?

Aspire, Infogain,

1223

What are class members by default?

Hexaware,

1145

What two classes are used to read data only?

TryTechnicals Pvt Ltd,

1145

What is scope of a variable?

TCS,

1156

What are "methods" and "fields"?

Wipro,

1073

Describe 2 different ways to concatenate two strings.

TCS,

1268

What is Recursion Function?

iNautix,

1265

What are static variables and functions?

Tech Mahindra,

1193

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Un-Answered Questions { Core Java }

Can a set contain duplicates?

1006

What do you mean by order of precedence and associativity?

998

What is parse method?

1068

Can long be null in java?

1083

Can classes declared using the abstract keyword cab be instantiated?

1098

Explain the selection sort algorithm?

1120

What modifiers are allowed for methods in an interface?

1217

Which one will take more memory: an int or integer?

1287

What is instance means in java?

1098

Can we override compareto method?

995

What is a method in programming?

1230

What is a platform?

1162

How to sort array of 0 and 1 in java?

1005

What is the difference between preparedstatement and statement in java?

1244

What is a file pointer?

1173

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