String/StringBuilder

Question

Provide an example of how you can use the 'string' and 'StringBuilder' classes to accomplish a task.

Muralidharan Deenathayalan · Answer

Here is the way you need to use string and stringbuilder. string testStirng = Hello World ; testStirng += ! Welcome ! ; MessageBox. Show (testStirng); StringBuilder testStringBuilder = new StringBuilder (); testStringBuilder. Append ( Hello World ); testStringBuilder. Append ( ! Welcome ! ); MessageBox. Show (testStringBuilder. ToString ()); The output will be same. But there is a difference in the internal implementation of string and stringbuilder. Difference Between String and String String 1.Its a class used to handle strings. 2.Here concatenation is used to combine two strings. 3.String object is used to concatenate two strings. 4.The first string is combined to the other string by creating a new copy in the memory as a string object and then the old string is deleted 5.That is why Strings are immutable. 6. Slower String Builder 1.This is also the class used to handle strings. 2.Here Append method is used. 3.Here Stringbuilder object is used. 4.Insertion is done on the existing string. 5.Usage of StringBuilder is more efficient in case large amounts of string manipulations have to be performed. 6. Faster For more information refer here http://www.c-sharpcorner.com/Blogs/3778/

Sunny Sharma · Answer

Here is a nice explanation with demonstration on performance difference between String and StringBuilder. Also it depicts how to use them. please follow this link: http://support.microsoft.com/kb/306822/en-us