Information Technology Reference
In-Depth Information
More on the switch Statement
A
switch
statement can have any number of switch sections, including none. The
default
sec-
tion is not required, as shown in the following example. It is, however, generally considered
good practice to include it, since it can catch potential errors.
For example, the
switch
statement in the following code has no
default
case. The
switch
statement is inside a
for
loop, which executes the statement five times, with the value of
x
start-
ing at
1
and ending at
5
.
for( int x=1; x<6; x++ )
{
switch( x )
{
case 5:
Console.WriteLine("x is {0} -- In Case 5", x);
break;
}
}
The output of this code is the following:
x is 5 -- In Case 5
The following code has
only
the default case:
for( int x=1; x<4; x++ )
{
switch( x )
{
default:
Console.WriteLine("x is {0} -- In Default case", x);
break;
}
}
This code produces the following output:
x is 1 -- In Default case
x is 2 -- In Default case
x is 3 -- In Default case
