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Java Related Interview Questions
Questions Answers Views Company eMail

What is garbage collection in Java, and how can it be used ?

Accenture, HCL, Infosys, Sara, SITS, TCS, Wipro,

32 78569

Differentiate Vector and ArrayList?

Max Telecom, Wipro,

6 15018

Differentiate constructor and a method and how are it be used?

Wipro,

7 15766

What is an abstract class?

DBS, Wipro,

8 14341

How can final class be used?

Accenture, Wipro,

5 14529

By what default value is an object reference declared as an instance variable?

Wipro,

1 13941

Java support what type of parameter passing ?

Wipro,

7 18477

Explain the term serialization?

Wipro,

10 17231

Is there is any error if you have multiple main methods in the same class?

Infosys, Wipro,

10 19153

What is Overriding and how can it be used?

Consagous, Wipro,

7 19681

How is serialization used generally ?

 3 8536

How are Swing and AWT be differentiated?

Wipro,

3 9289

Explain pass by reference and pass by value?

IBM, Wipro,

8 18666

In which way does a Primitive data type is passed ?

Sun Microsystems,

5 12578

What happens when a main method is declared as private?

DELL, Infosys, L&T, Sun Microsystems,

22 57841

Un-Answered Questions { Java Related }

Is set thread safe java?

688

Where and how can you use a private constructor?

724

What is spring ioc definition?

289

What happens if a try-catch-finally statement does not have a catch clause to handle an exception that is thrown within the body of the try statement?

847

Why lambda expression is used in java?

749

How ejb invocation happens?

768

What is type inference in java8?

774

Why hibernate is required?

240

What is ripplestart?

719

What is mapping class in hibernate?

290

What is a durable queue?

600

Explain the available thread states in a high-level?

718

Is spring a j2ee?

256

What is sizeof in java?

839

Is php faster than java?

647

For More Un-Answered { Java Related } Questions Click Here