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Core Java Interview Questions
Questions Answers Views Company eMail

finalize() method?

5 7757

What is the use of bin and lib in JDK?

TCS,

8 26060

What are Transient and Volatile Modifiers?

SAP Labs, TUP Manila,

3 12405

Difference between this(), super()?

College School Exams Tests, Oracle,

12 28136

What is a package?

2 4045

What is casting?

3 3961

Difference between an argument and a parameter?

Accounting, HCL, IBM, Quinnox,

10 41374

Explain final, finalize() and finally?

Accenture, TCS,

11 30724

What are different types of access modifiers?

3 5821

What are Encapsulation, Polymorphism and Inheritance?

5 21180

Explain different ways of passing arguments to sub-routine?

1 4264

Difference between Superclass and Subclass?

7 42254

what modifiers are used with top-level class?

2 4024

What are inner and anonymous class?

3 4670

what is the Diff. between Access Specifiers and Access Modifiers?

BMC, Cyber Shot, Infosys, VTS, Wipro,

39 102013


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Un-Answered Questions { Core Java }

what are the high-level thread states? : Java thread

136


State differences between C and Java?

203


How many characters is 16 bytes?

106


What is ctrl m character?

111


Is null == null in java?

128






What is scope & storage allocation of static, local and register variables? Explain with an example.

159


What is static class

176


Explain creating threads by implementing runnable class?

171


Explain enumeration in java?

143


What is time complexity algorithm?

88


How do you reverse a string in java without using string buffer?

167


Is there any tag in htm to upload and download files?

165


Is passing by reference faster?

103


Can main() method in java can return any data?

157


Explain exception chaining in java?

143