What is the difference between TypeOf, GetType and what are
the uses of TypeOf, GetType.
Answers were Sorted based on User's Feedback
Answer / konduru bhaskar raju
typeof and GetType produce the exact same information. But
the difference is where they get this information from:
typeof is used to get the type based on a class. That means
if you use typeof with object, it will gives you error. You
must pass class as parameter parameter.
Where GetType is used to get the type based on an object
(an instance of a class). Means GetType needs parameter of
object rather than class name.
You can understand more with example.
The following code will output “True”:
string instance = “”;
Type type1 = typeof(string);
Type type2 = instance.GetType();
Console.WriteLine(type1 == type2);
Is This Answer Correct ? | 15 Yes | 5 No |
Answer / rajesh marripalli
In simple words, all value based types are allocated on the
stack, while all reference based types are allocated on the
heap. What does this mean? A value type contains the actual
value. A reference type contains a reference to the value.
When a value type is assigned to another value type, it is
copied. When a reference type is assigned to another
reference type, a reference is assigned to the value.
By saying stack, we mean things are kept one on top of the
other. We keep track of each value at the top. By saying
heap, we mean things are kept in a mashed order. We keep
track of each value by its address that is referenced by a
pointer to it.
All value types are implicitly derived from
System.ValueType. This class actually overrides the
implementation in System.Object, the base class for all
objects which is a reference type itself.
Data types like integers, floating point numbers, character
data, Boolean values, Enumerations and Structures are
examples of Value Types. Classes, Strings, Arrays are
examples of Reference Types.
A value type may not contain NULL values. Reference types
may contain NULL values.
It is not possible to derive new types from Value Types.
This is possible in Reference types. However, Value Types
like Structures can implement interfaces.
Is This Answer Correct ? | 2 Yes | 12 No |
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