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 7803

explain the clone method and clonable interface

1 7602

what are depricated methods in threads and explain the lifecycle methods

CTS,

5 12837

explain the classification of exception and hoew to handle the exceptions

2 10043

what is java

10 11528

what is Assertion?

Wipro,

4 15156

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

TCS,

9 18380

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

Accenture,

3 9979

How does serialization work

Ordain Solutions,

3 11114

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

3 8543

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

Accenture,

4 26923

What is the difference between Stream Reader and Stream Writer?

4 17523

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

2 8361

Why we need to serialize the object

CTS, Geometric Software,

11 39924

can we have virtual functions in java?

Wipro,

11 47407

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Un-Answered Questions { Core Java }

Can we overload destructor in java?

1006

What is meant by final class?

1131

What is a map in java?

1005

How does enum work in java?

1028

Define inheritance?

1023

What is java full form?

1041

Explain about main thread in java?

1093

How java is similar to c?

1061

Which browsers work with java?

1083

What is the difference between a factory and abstract factory pattern?

1152

What is difference between string and new string?

1041

What is the basic difference between string and stringbuffer object?

1095

Difference between Linked list and Queue?

1037

What is the difference between stored procedure & function?

983

Is set ordered?

987

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