What is the difference b/w constant & read only variable?
Answer Posted / sumesh
For Both Constants and Read only values, we can set values
for them only once.
In the case of Constants, we set the value at the compile
time itself. After that we cannot change it
Example:
class Test
{
const double pi = 3.14;
.......................
.......................
}
In the case of Read only data, we can set the value in the
constructor.
Example:
class Test
{
private double _bonus;
public Test(double bonus)
{
_bonus = bonus;
}
public double Bonus
{
get { return _bonus; }
}
}
Test a(5.25);
Test b(6.75);
In this case, at the time object creation, we can set the
value for the bonus. That is, we can decide the value at
the runtime. So a reaonly variable is also known as runtime
constants.
So, the basic difference is, in the case of contstant, the
value will be same across the objects of that class, but it
may differ in the case of readonly variables.
| Is This Answer Correct ? | 16 Yes | 0 No |
Post New Answer View All Answers
How to make sure Client Validation is enabled in ASP.Net MVC
What is Separation of Concerns in ASP.NET ASP.Net MVC?
what do you mean by table-per-hierarchy?
Which is the root namespace for fundamental types in .net framework?
Why should we go for entity framework?
Can we free memory explicitly without waiting for garbage collector to free the memory in .net compact framework?
Explain representational state transfer (rest) in detail?
Can you please explain the request flow in ASP.NET MVC framework?
Describe the roles of clr in .net framework.?
Explain the .net framework.
What are html helpers in asp.net mvc?
What is the importance of NonActionAttribute?
What is the difference between model and entity?
Difference between ASP.NET MVC and ASP.NET WebForms?
What are the main components of .net framework?