Interested to Buy Any Domain ? << Click Here >> for more details...
Explain the Difference between value and reference type.
- 2 Answers
- 8267 Views
- Infosys, Wipro, I also Faced
- E-Mail Answers
Answers were Sorted based on User's Feedback
Answer / suhasini suresh
Reference types are stored on the run-time heap; they may
only be accessed through a reference to that storage. This
allows the garbage collector to track outstanding
references to a particular instance and free the instance
when no references remain. A variable of reference type
always contains a reference to a value of that type or a
null reference. A null reference refers to nothing; it is
invalid to do anything with a null reference except assign
it. Assignment to a variable of a reference type creates a
copy of the reference, not a copy of the value being
referenced.
Value types are stored directly on the stack, either within
an array or within another type. When the location
containing a value type instance is destroyed, the value
type instance is also destroyed. Value types are always
accessed directly; it is not possible to create a reference
to a value type. Prohibiting such a reference makes it
impossible to refer to a value class instance that has been
destroyed. A variable of a value type always contains a
value of that type. Unlike reference types, the value of a
value type cannot be a null reference, nor can it reference
an object of a more derived type. Assignment to a variable
of a value type creates a copy of the value being assigned.
| Is This Answer Correct ? | 10 Yes | 3 No |
Answer / kinjal
c# provides a set of datatypes. datatypes of c# contain two categories one is value type and another is reference type.
value type is a variable. datatype value store in variables while a variable of a reference type stores a reference to the data.
both value type and reference type have one common thing - both derived from system.object.
| Is This Answer Correct ? | 1 Yes | 1 No |
What are the contents of assembly?
What is Complex Class in .NET?
Can you explain what do you understand about web service?
Explain me what are the deferred execution and the immediate execution in linq?
What is manifest in .net?
Is .net is platform independent. If am using solaris, installing .net first u had to install framework, so framework is .exe file then it will not take in solaris or any other than windows,then how .net is platform independent.
Explain how does assembly versioning work?
What is connected and diconnected database ?
Explain what is the difference between a class and an object?
Difference between Panel and GroupBox classes?
What is the difference between override and overload in a method?
what user controls are and what server controls are and the differences between the two.
Dot Net Framework 
