Answer / jl

Wrapper classes are used to convert primitive types to objects.

Answer / vishnu

Wrapper class is a wrapper around a primitive data type. It
represents primitive data types in their corresponding class
instances e.g. a boolean data type can be represented as a
Boolean class instance. All of the primitive wrapper classes
in Java are immutable i.e. once assigned a value to a
wrapper class instance cannot be changed further.

Answer / sitaram

Wrapper classes are used to convert primitive types to
objects. wrapper classes are final classes. final classes
can't be extends to other class.

Why to use nested classes in java?

0 Answers  

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What is keyword auto for?

0 Answers  

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There can be a abstract class without abstract methods, but what is the need to declare a class abstract if it doesn't contain abstract methods?

5 Answers   HCL,

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What do you mean by pointer value and address?

0 Answers   Syntel, Visa,

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What are java methods?

0 Answers  

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Is age a discrete variable?

0 Answers  

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What is a double vs float?

0 Answers  

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what is marker interface ? what is the necessity of it?

5 Answers   Accenture, Newgen,

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Is it possible to create Userdefined Unchecked Exception also?If Yes, give an example?

2 Answers   ADP,

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why is S capital in System.out.println ????

6 Answers  

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all are saying java doesn't support multiple inheritance but by default Object class is super class for all the user defined classes and we can extend atmost one class so each class can extend more than one class so java supports multiple inheritance?i am confused with this,pls any one explain me.

4 Answers  

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What is default exception handling in java?

0 Answers  

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