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

Core Java Interview Questions

Questions Answers Views Company eMail

why the constructor should be used in class,if there is no constructor what will happen?

4 7948

explain the clone method and clonable interface

1 7686

what are depricated methods in threads and explain the lifecycle methods

CTS,

5 13017

explain the classification of exception and hoew to handle the exceptions

2 10156

what is java

10 11841

what is Assertion?

Wipro,

4 15311

When does the compiler supply a default constructor for a class?

TCS,

9 18636

Which Math method is used to calculate the absolute value of a number?

Accenture,

3 10118

How does serialization work

Ordain Solutions,

3 11238

To what value is a variable of the Boolean type automatically initialized?

3 8723

What is the exact difference in between Unicast and Multicast object ?

Accenture,

4 27104

What is the difference between Stream Reader and Stream Writer?

4 17653

Which class should you use to obtain design information about an object

2 8454

Why we need to serialize the object

CTS, Geometric Software,

11 40208

can we have virtual functions in java?

Wipro,

11 47765

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Un-Answered Questions { Core Java }

What are the advantages of java inner classes?

1122

What type of variable is error flag?

1141

What are the basic interfaces of java collections framework?

1194

How do you create a sop?

1057

What is a java developer salary?

1032

What are the types of strings?

1099

What is anagram word?

1060

Explain about interthread communication and how it takes place in java?

1086

What are the three types of design patterns?

1020

what are synchronized methods and synchronized statements? : Java thread

1057

What is meant by interface?

1110

What are the new features in java 8?

1079

What is difference between add() and addelement() in vector?

1592

What are the 4 types of characters?

1071

What is java english?

1097

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