Information Technology Reference
In-Depth Information
WriteLine
WriteLine
is another member of
Console
; it performs the same functions as
Write
, but appends
a newline character to the end of each output string.
For example, if you use the preceding code, but use
WriteLine
instead of
Write
, the output
is on separate lines:
System.Console.WriteLine("This is text 1.");
System.Console.WriteLine("This is text 2.");
System.Console.WriteLine("This is text 3.");
This code produces the following output in the console window:
This is text 1.
This is text 2.
This is text 3.
The Format String
The general form of the
Write
and
WriteLine
statements takes more than a single parameter.
If there is more than a single parameter, the parameters are separated by commas.
The first parameter must always be a string, and is called the
format string
.
The parameters following the format string are called
substitution values
. The substitu-
tion values are numbered, starting at 0.
The syntax is as follows:
Console.WriteLine(
FormatString
,
SubVal0
,
SubVal1
,
SubVal2
, ... );
For example, the following statement has two substitution values, numbered
0
and
1
.
Their values are
3
and
6
, respectively.
Console.WriteLine(
"Two sample integers are {0} and {1}."
,
3, 6
);
↑
↑
Format string
Substitution values
