Working With Strings in C#

In C#, there are many predefined methods for manipulating String and Dates which serve as a tool for solving many problems. We are going to have a program where most of the methods are used to manipulate strings and then go one by one.

String Methods:

  • In First string, we need double quotes in our line but our compiler will get it as a special character so we use a backslash. This is called the escape character. Now the compiler will treat these as normal characters of strings.
  • In the Second string, the output contains a new line due to ‘\n’ which is a new line character.
  • In the Third string, we are starting the string with @ to ensure that compiler will take backslash as a normal character.
  • After that in the Fourth string, we are using Format() method to have a formatted string where 1 and 0 in the curly braces will be replaced by Second and First. In general, the numbers in the curly braces are replaced by the corresponding number of variables passed in a method after the string.
  • Next one is also the same but instead, it has ‘:C’ inside curly braces to convert the value in the currency of the present region. Like that ‘:N’ is used  to separate numbers in the unit system, ‘:P’ is for percentage, ‘#’ is for spacing and brackets

In C# we have some string function which can return substrings of a string and also can change cases, replace or remove substrings. Next block of code in the given example has these methods.


There are other advanced functions also like Trim(). And strings can be declared as StringBuilder myString = new StringBuilder(). StringBuilder is mutable, means if create string builder object then you can perform any operation like insert, replace or append without creating a new instance for every time it will update string at one place in memory doesn’t create new space in memory.

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