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How to send a stacktrace to log4j?
... The logger takes an object for its first argument and will toString() it. However the second argument has to be a Throwable and displays the stack trace.
– Peter Lawrey
Dec 3 '10 at 16:50
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Immutable class?
...e, not immutable.
// notQuiteImmutableList contains "a", "b", "c"
List<String> notQuiteImmutableList= new NotQuiteImmutableList(Arrays.asList("a", "b", "c"));
// now the list contains "a", "b", "c", "d" -- this list is mutable.
notQuiteImmutableList.getList().add("d");
One way to get aroun...
Add property to anonymous type after creation
...
If you're trying to extend this method:
public static MvcHtmlString ActionLink(this HtmlHelper htmlHelper, string linkText, string actionName, object routeValues);
Although I'm sure Khaja's Object extensions would work, you might get better performance by creating a RouteValueDiction...
How can I get the assembly file version
...vi = System.Diagnostics.FileVersionInfo.GetVersionInfo(assembly.Location);
string version = fvi.FileVersion;
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Nullable type as a generic parameter possible?
...>, and call the method with the non nullable parameter
static void Main(string[] args)
{
int? i = GetValueOrNull<int>(null, string.Empty);
}
public static Nullable<T> GetValueOrNull<T>(DbDataRecord reader, string columnName) where T : struct
{
object columnValue = read...
Why doesn't Dictionary have AddRange?
...
I've got some solution:
Dictionary<string, string> mainDic = new Dictionary<string, string>() {
{ "Key1", "Value1" },
{ "Key2", "Value2.1" },
};
Dictionary<string, string> additionalDic= new Dictionary<string, string>() {
{ "...
A semantics for Bash scripts?
...are the scoping rules? What is the typing discipline, e.g. is everything a string? What is the state of the program -- is it a key-value assignment of strings to variable names; is there more than that, e.g. the stack? Is there a heap? And so on.
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How can I determine if a String is non-null and not only whitespace in Groovy?
Groovy adds the isAllWhitespace() method to Strings, which is great, but there doesn't seem to be a good way of determining if a String has something other than just white space in it.
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What is Func, how and when is it used
...pe to reference a method that returns some value of T. E.g.
public static string GetMessage() { return "Hello world"; }
may be referenced like this
Func<string> f = GetMessage;
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im...
Replace only some groups with Regex
...eed to identify them or not. That way you can use them in your replacement string. For example:
var pattern = @"(-)(\d+)(-)";
var replaced = Regex.Replace(text, pattern, "$1AA$3");
or using a MatchEvaluator:
var replaced = Regex.Replace(text, pattern, m => m.Groups[1].Value + "AA" + m.Groups...