create a function in csharp

In C#, functions are written as "methods". Here is the basic syntax for creating a method:

main.cs
<access modifier> <return type> <method name> (<parameters>)
{
    // method body
}
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Explanation of the components:

• <access modifier>: This determines the visibility of the method. Some common access modifiers are public, private, and protected.
• <return type>: This specifies the data type of the value that the method will return. If the method does not return anything, use the void keyword.
• <method name>: This is the name of the method, which you can choose freely (with some restrictions).
• <parameters>: This is a comma-separated list of input parameters for the method. Each parameter is specified as <type> <name>.

Here is an example of a method that takes two integers as input and returns their sum:

main.cs
public int Sum(int x, int y)
{
    int result = x + y;
    return result;
}
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In this example, the access modifier is public, the return type is int, the method name is Sum, and there are two input parameters of type int named x and y. The method body calculates the sum of x and y, stores the result in a variable, and returns the result as an int value.