Interested to Buy Any Domain ? << Click Here >> for more details...
Answer Posted / kishoreg
Since C# strings are immutable, an existing string cannot
be modified. So, if one tries to change a string either
with the concatenation operator (+) or with the Insert,
PadLeft, PadRight, Replace, or SubString methods, an
entirely new string is created—leaving the original string
intact.
Therefore, operations which would alter strings—instead—
cause additional memory to be allocated. Memory is a scarce
resource. And, memory allocations are expensive in terms of
memory and performance. Consequently, sometimes String
class usage should be avoided.
The StringBuilder class is designed for situations when one
needs to work with a single string and make an arbitrary
number of iterative changes to it. Many StringBuilder class
methods are the same as those of the String class. However,
the string content of a StringBuilder class can be changed
without the necessity of allocating additional memory.
Thus, operations on the StringBuilder class will be much
faster than operations on the String class in certain
situations. Paradoxically, just the the opposite can be
true in other situations.
The String class is optimized and quite efficient for most
cases. On the other hand, if strings must be modified, then
the String class can be a real resource waster. It must be
appreciated that the String class is really very
intelligent in its memory handling in most everyday
programming situations.
Instead of the String class, use the StringBuilder class
when a single string must be modified repeatedly.
| Is This Answer Correct ? | 5 Yes | 0 No |
Post New Answer View All Answers
What is serialization and deserialization in c# with example?
How a two-dimensional array declared in C#?
Explain the serialization in .net
You are creating a custom usercontrol, some of the newly created properties are shown in the properties window. How you can hide a new property named theme from the properties window?
What does an indexer do?
What does .length do in c#?
What is firstordefault c#?
What is a verbatim string literal and why do we use it?
What is a byte in c#?
Is c# pass by value?
Explain the difference between object type and dynamic type variables in c#?
What are the benefits of using the aggregate method in linq?
Write a program to create a user control with name and surname as data members and login as method and also the code to call it. (Hint use event delegates) Practical Example of Passing an Events to delegates
What is datareader c#?
what is generics? can u explain 5 to 6 examples on generics that covers class,method,structure,list,delegates?
