10 - C# Switch Statements | Switch Statements in C# | How to use Switch statements in c#

In this tutorial we will learn about switch statements.switch statements in C# is multi way branch statement. it provides an easy way to dispatch execution to different parts of your code based on the value of an expression. it often provides a better alternative than a large series of if-else statements. This is how it works: The switch expression is evaluated once The value of the expression is compared with the values of each case If there is a match, the associated block of code is executed The break and default keywords will be described later C# - Switch Statement A switch statement allows a variable to be tested for equality against a list of values. Each value is called a case, and the variable being switched on is checked for each switch case. The following rules apply to a switch statement −

The expression used in a switch statement must have an integral or enumerated type, or be of a class type in which the class has a single conversion function to an integral or enumerated type.
You can have any number of case statements within a switch. Each case is followed by the value to be compared to and a colon.
The constant-expression for a case must be the same data type as the variable in the switch, and it must be a constant or a literal.
When the variable being switched on is equal to a case, the statements following that case will execute until a break statement is reached.
When a break statement is reached, the switch terminates, and the flow of control jumps to the next line following the switch statement.
Not every case needs to contain a break. If no break appears, then it will raise a compile time error.
A switch statement can have an optional default case, which must appear at the end of the switch. The default case can be used for performing a task when none of the cases is true.

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