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C#,0 problem

Started by sevak Nov 20, 2004 at 7:35 PM 0 replies 450+ views

Original Post

Nov 20, 2004 at 7:35 PM

ok I have this code. From what I understand the code below should cause the program to say Hello, CHECK [whatever u type] Welcome to C# Station Tutorial! but it actually says Hello, [whatever u type] CHECK Welcome to C# Station Tutorial! Can someone plz explain to me why? // Namespace Declaration using System; // Program start class class NamedWelcome { // Main begins program execution. public static void Main() { // Write to console Console.WriteLine("Hello, {0}!", "CHECK", Console.ReadLine()); Console.WriteLine("Welcome to the C# Station Tutorial!"); Console.ReadLine(); } }

kSquared

Nov 20, 2004 at 8:11 PM

Actually, the output is always going to be:

Hello, CHECK! Welcome to the C# Station Tutorial!

When you specify parameter replacements in a WriteLine statement (that is, {0}, {1}, {2}, ...), each number corresponds to the index of the parameter. The second parameter you pass has index zero.

Console.WriteLine("Printing test strings: {0} {1}!", "foo", "bar");

The above prints "Printing test strings: foo bar!"

In your example, the {1} parameter is specified but never printed because you haven't included a "{1}" in the print string anywhere. Only the first parameter you passed ("CHECK") is printed since there's a {0} in the print string. What you probably want is this:

Console.WriteLine("Hello, {0} {1}!", "CHECK", Console.ReadLine());

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