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mentioned strings immutability and added details about var keyword (C#)

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Melvyn 2013-09-21 15:27:55 -04:00
parent 81c0480780
commit a2b14fcedf
1 changed files with 5 additions and 0 deletions
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@ -111,6 +111,9 @@ namespace Learning
// a string is a reference type. That is, you can set it to null // a string is a reference type. That is, you can set it to null
string fooString = "My string is here!"; string fooString = "My string is here!";
Console.WriteLine(fooString); Console.WriteLine(fooString);
// You can access each character of the string with an indexer:
char charFromString = fooString[1]; // 'y'
// Strings are immutable: you can't do fooString[1] = 'X';
// formatting // formatting
string fooFs = string.Format("Check Check, {0} {1}, {0} {1:0.0}", 1, 2); string fooFs = string.Format("Check Check, {0} {1}, {0} {1:0.0}", 1, 2);
@ -165,6 +168,8 @@ namespace Learning
Console.WriteLine("Not nullable variable: " + notNullable); Console.WriteLine("Not nullable variable: " + notNullable);
// Var - compiler will choose the most appropriate type based on value // Var - compiler will choose the most appropriate type based on value
// Please not that this does not remove type safety.
// In this case, the type of fooImplicit is known to be a bool at compile time
var fooImplicit = true; var fooImplicit = true;
/////////////////////////////////////////////////// ///////////////////////////////////////////////////