In .NET, strings are immutable meaning that you cannot change their value.
All the operations on a string result in a new string. In this case,
String.Replace() returns a new string with the word "testing" replaced. You
can see it from this example where newValue contains the new string.
public static void Main()
{
string test="testing 1 2 3";
string newValule = test.Replace("testing", "test"); // why this doesn't
replace the word "testing" ?
}
Try using System.Text.StringBuilder instead, which does exactly what you
want:
public static void Main()
{
System.Text.StringBuilder sb = new StringBuilder("testing 1 2 3");
sb.Replace("testing", "test");
string newValue = sb.ToString();
}
Yes, you can have multiple catch blocks when using try. Here's an example:
public static void Main()
{
try
{
FileStream fs = File.Open(@"C:\Foo.txt", System.IO.FileMode.Open);
}
catch (ArgumentException e)
{
}
catch(FileNotFoundException e)
{
}
catch(IOException e)
{
}
finally
{
}
}
HabibH.
"smith flyers" <fl***@masfd.com> wrote in message
news:3f********@news.tm.net.my...
static void Main(string[] what) { string test="testing 1 2 3";
test.Replace("testing", "test"); } // why this doesn't replace the
word "testing" ?
when using "try" can i use multiple "block catch" ? // i tried but
can't , this is allowed in java right, how about C#?
ex. catch(exception e) {} catch(FormatException){}
thank you for clarifying
