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Console.WriteLine Method ()

Writes the current line terminator to the standard output stream.

Namespace: System
Assembly: mscorlib (in mscorlib.dll)

public static void WriteLine ()
public static void WriteLine ()
public static function WriteLine ()

Exception typeCondition

IOException

An I/O error occurred.

The default line terminator is a string whose value is a carriage return followed by a line feed ("\r\n"). Change the line terminator by setting the TextWriter.NewLine property of the Out property to another string.

For example, in C#, set the line terminator to two carriage return and line feed sequences with the statement, Console.Out.NewLine = "\r\n\r\n";.

The following code example illustrates the use of the WriteLine method.

// System.Console.WriteLine

using System;
public class TipCalculator {
    private const double tipRate = 0.18;
    public static int Main(string[] args) {
        double billTotal;
        if (args.Length == 0) {
            Console.WriteLine("usage: TIPCALC total");
            return 1;
        }
        else {
            try {
                billTotal = Double.Parse(args[0]);
            }
            catch(FormatException) {
                Console.WriteLine("usage: TIPCALC total");
                return 1;
            }
            double tip = billTotal * tipRate;
            Console.WriteLine();
            Console.WriteLine("Bill total:\t{0,8:c}", billTotal);
            Console.WriteLine("Tip total/rate:\t{0,8:c} ({1:p1})", tip, tipRate);
            Console.WriteLine(("").PadRight(24, '-'));
            Console.WriteLine("Grand total:\t{0,8:c}", billTotal + tip);
            return 0;
        }
    }
}

/*
Example Output:
---------------

Bill total:       $52.23
Tip total/rate:    $9.40 (18.0 %)
------------------------
Grand total:      $61.63
*/

// System.Console.WriteLine

import System.* ;

public class TipCalculator
{
    private static double tipRate = 0.18;

    public static void main(String[] args)
    {
        double billTotal = 0;

        if (args.length == 0) {
            Console.WriteLine("usage: TIPCALC total");            
        }
        else {

            try {
                billTotal = Double.parseDouble(args[0]);
            }
            catch (FormatException exp)    {
                Console.WriteLine("usage: TIPCALC total");                
            }

            double tip = billTotal * tipRate;

            Console.WriteLine();
            Console.WriteLine("Bill total:\t{0,8}", 
                ((System.Double)billTotal).ToString("c"));
            Console.WriteLine("Tip total/rate:\t{0,8} ({1})", 
                ((System.Double)tip).ToString("c"), 
                ((System.Double)tipRate).ToString("p1"));
            Console.WriteLine("".PadRight(24, '-'));
            Console.WriteLine("Grand total:\t{0,8}",
                ((System.Double)(billTotal + tip)).ToString("c"));                
        }
    } //main
} //TipCalculator

/*
Example Output:
---------------

Bill total:       $52.23
Tip total/rate:    $9.40 (18.0 %)
------------------------
Grand total:      $61.63
*/

// System.Console.WriteLine
import System;
    
const tipRate : Number = 0.18;
var billTotal : Number;
var args : String[] = Environment.GetCommandLineArgs();

if (args.Length != 2) {
    Console.WriteLine("usage: TIPCALC total");
    Environment.Exit(1);
}

try {
    billTotal = Double.Parse(args[1]);
}
catch(FormatException) {
    Console.WriteLine("usage: TIPCALC total");
    Environment.Exit(1);
}

var tip : double = billTotal * tipRate;
Console.WriteLine();
Console.WriteLine("Bill total:\t{0,8:c}", billTotal);
Console.WriteLine("Tip total/rate:\t{0,8:c} ({1:p1})", tip, tipRate);
Console.WriteLine(("").PadRight(24, '-'));
Console.WriteLine("Grand total:\t{0,8:c}", billTotal + tip);

/*
Example Output:
---------------

Bill total:       $52.23
Tip total/rate:    $9.40 (18.0 %)
------------------------
Grand total:      $61.63
*/

Windows 98, Windows 2000 SP4, Windows Millennium Edition, Windows Server 2003, Windows XP Media Center Edition, Windows XP Professional x64 Edition, Windows XP SP2, Windows XP Starter Edition

The .NET Framework does not support all versions of every platform. For a list of the supported versions, see System Requirements.

.NET Framework

Supported in: 2.0, 1.1, 1.0

.NET Compact Framework

Supported in: 2.0, 1.0

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