Workings

"Switch statements"

These are my study notes relating to an exercise in Microsoft Learn
Complete a challenge activity using switch statement

Quick breakdown of the SKU reference:

string sku = "01-MN-L";
string[] product = sku.Split('-');

string type = "";
string color = "";
string size = "";

if (product[0] == "01")
{
    type = "Sweat shirt";
} else if (product[0] == "02")
{
    type = "T-Shirt";
} else if (product[0] == "03")
{
    type = "Sweat pants";
}
else
{
    type = "Other";
}

Due to zero indexing the elements in the product serial number are as follows:

product[0] = “01” (type)
product[1] = “MN” (color)
product[2] = “L” (size)

To convert the “if, else if, else” statement to a “switch” statement refactor the code as follows:

switch (product[0])
{
    case "01":
    type = "Sweat shirt";
    break;

    case "02":
    type = "T-Shirt";
    break;

    case "03":
    type = "Sweat pants";
    break;

    default:
    type = "other";
    break;
}

Continue through the remaining code refactoring the “if, else if, else” statements to “switch” statements as appropriate :wink:

+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ Solution (with original code commented out:

// SKU = Stock Keeping Unit. 
// SKU value format: <product #>-<2-letter color code>-<size code>
string sku = "01-MN-L";

string[] product = sku.Split('-');

string type = "";
string color = "";
string size = "";

/*if (product[0] == "01")
{
type = "Sweat shirt";
} else if (product[0] == "02")
{
type = "T-Shirt";
} else if (product[0] == "03")
{
type = "Sweat pants";
}
else
{
type = "Other";
}
*/
switch (product[0])
{
case "01":
type = "Sweat shirt";
break;

case "02":
type = "T-Shirt";
break;

case "03":
type = "Sweat pants";
break;

default:
type = "other";
break;
}
/*
if (product[1] == "BL")
{
color = "Black";
} else if (product[1] == "MN")
{
color = "Maroon";
} else
{
color = "White";
}
*/
switch (product[1])
{
case "BL":
color = "Black";
break;

case "MN":
color = "Maroon";
break;

default:
color = "White";
break;
}
/*if (product[2] == "S")
{
size = "Small";
} else if (product[2] == "M")
{
size = "Medium";
} else if (product[2] == "L")
{
size = "Large";
} else
{
size = "One Size Fits All";
}
*/
switch (product[2])
{
case "S":
size = "Small";
break;

case "M":
size = "Medium";
break;

case "L":
size = "Large";
break;

default:
size = "One size fits all";
break;
}

Console.WriteLine($"Product: {size} {color} {type}");

W3C If,Else if,Else Statement
W3C Switch Statement

Excellence

Buzzfizz