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In which language are the Java compiler and JVM written?
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The precise phrasing of the question is slightly misleading: it is not "the JVM" or "the compiler" as there are multiple JVM vendors (jrockit is one, IBM another) and multiple compilers out there.
The Sun JVM is written in C, alth...
How to uninstall a Windows Service when there is no executable for it left on the system?
How do I uninstall a Windows Service when there is no executable for it left on the system? I can not run installutil -u since there is not executable left on the system. I can still see an entry for the service in the Services console.
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What is the $? (dollar question mark) variable in shell scripting? [duplicate]
... learn shell scripting, and I need to understand someone else's code. What is the $? variable hold? I can't Google search the answer because they block punctuation characters.
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How to tell Jackson to ignore a field during serialization if its value is null?
...figured to ignore a field value during serialization if that field's value is null.
19 Answers
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When to use Task.Delay, when to use Thread.Sleep?
...ot be a paramount concern with these methods. Their primary real-world use is as retry timers for I/O operations, which are on the order of seconds rather than milliseconds.
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What's the better (cleaner) way to ignore output in PowerShell? [closed]
...ions that I know about.
Measure-Command {$(1..1000) | Out-Null}
TotalMilliseconds : 76.211
Measure-Command {[Void]$(1..1000)}
TotalMilliseconds : 0.217
Measure-Command {$(1..1000) > $null}
TotalMilliseconds : 0.2478
Measure-Command {$null = $(1..1000)}
TotalMilliseconds : 0.2122
## Contr...
Convert String to SecureString
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You don't. The whole reason for using the SecureString object is to avoid creating a string object (which is loaded into memory and kept there in plaintext until garbage collection). However, you can add characters to a SecureString by appending them.
var s = new SecureString();
s.App...
Pros and Cons of SQLite and Shared Preferences [closed]
What is the good mechanism to store information among SQLite database and Shared Preferences?
5 Answers
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When NOT to use yield (return) [duplicate]
... use of yield will be limiting, unnecessary, get me into trouble, or otherwise should be avoided?
It's a good idea to think carefully about your use of "yield return" when dealing with recursively defined structures. For example, I often see this:
public static IEnumerable<T> PreorderTraver...
Pure JavaScript Graphviz equivalent [closed]
Is anyone aware of a pure, Javascript based implementation of the directional flow diagrams that GraphViz is capable of generating? I am NOT interested in pretty visuals output, but the computations to figure out the maximum depth of each node, along with the layout of bezier lines that are optimize...