Control Statements
if/else and switch
switch

The syntax of the switch statement

switch (integerExpression)
{
    case label1:
        statements
        break;
    case label2:
        statements
        break;
    any other case statements
    default: (optional)
        statements
        break;
}

How to code switch statements

The switch statement can only be used with an expression that evaluates to one of these integer types: char, byte, short, or int.
The case labels represent the integer values of the expression, and these labels can be coded in any sequence.
The switch statement transfers control to the appropriate case label.
If control isn't transferred to one of the case labels, the optional default label is executed.
If a case label doesn't contain a break statement, code execution will fall through to the next label. Otherwise, the break statement ends the switch statement.

A switch statement with a default label

switch (productID)
{
    case 1:
        productDescription = "Hammer";
        break;
    case 2:
        productDescription = "Box of Nails";
        break;
    default:
        productDescription = "Product not found";
        break;
}

A switch statement that falls through case labels

switch (dayOfWeek)
{
    case 2:
    case 3:
    case 4:
    case 5:
    case 6:
        day = "weekday";
        break;
    case 1:
    case 7:
        day = "weekend";
        break;
}