Sams Teach Yourself C in 21 Days

The C# Programming Language 775

BD7

As you can see, the difference between the two routines is that WriteLine()automati-

cally goes to a new line after the text is displayed, whereas Write()does not. Listing

B7.3 shows the two routines in action.

LISTINGB7.3 display.cs—Using WriteLine()andWrite()

1: // display.cs - printing with WriteLine and Write

2: //———————————————————————-

3:

4: class display

5: {

6: public static void Main()

7: {

8: System.Console.WriteLine(“First WriteLine Line”);

9: System.Console.WriteLine(“Second WriteLine Line”);

10:

11: System.Console.Write(“First Write Line”);

12: System.Console.Write(“Second Write Line”);

13:

14: // Passing parameters

15: System.Console.WriteLine(“\nWriteLine: Parameter = {0}”, 123 );

16:

17: System.Console.Write(“Write: Parameters = {0} and {1}”, 456, 789);

18: }

19: }

First WriteLine Line

Second WriteLine Line

First Write LineSecond Write Line

WriteLine: Parameter = 123

Write: Parameters = 456 and 789

This listing uses the System.Console.WriteLine()routine on lines 8 and 9 to

print two pieces of text. You can see from the output that each of these print on a

separate line. Lines 11 and 12 show the System.Console.Write()routine. These two

lines print on the same line. There is not a return line feed after printing. Lines 15 and 17

show each of these routines with the use of a parameter. You should notice that the para-

meters are not implemented the same as in C. With C and printf()you used a percent-

age sign to indicate a parameter. In C# you include a parameter value between braces.

You should also notice that the parameters in C# are numbered. Parameters are not sim-

ply applied in order like in C and printf(). Rather, the first parameter is applied to {0},

the second to {1}.

OUTPUT

ANALYSIS

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