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,

1120

What are the Class Libraries ?

Wipro,

1090

What do you understand by a Static Variable?

CGI,

1278

Differece between class and generic class?

Tech Mahindra,

1097

What are the Static and Dynamic Variables? Differentiate them.

CGI,

1169

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,

1075

Describe 2 different ways to concatenate two strings.

TCS,

1268

What is Recursion Function?

iNautix,

1267

What are static variables and functions?

Tech Mahindra,

1195

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Un-Answered Questions { Core Java }

State two differences between C and Java.

1398

How many types of exception can occur in a java program?

1044

What are the elements of java?

1072

What are scalar data types?

1139

Can sleep() method causes another thread to sleep?

1085

How arrays are stored in memory in java?

1025

What is sortedmap interface?

1059

Can we clone singleton class in java?

1019

What is the difference between this() and super() in java?

1105

What function extracts specified characters from a string?

1062

How is hashcode calculated in java?

1095

How do you empty a list in java?

1022

What is parse method?

1070

What is collection class in java?

1059

Is string a wrapper class?

1064

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