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How to get thread id from a thread pool?
...rt java.util.concurrent.*;
class ThreadIdTest {
public static void main(String[] args) {
final int numThreads = 5;
ExecutorService exec = Executors.newFixedThreadPool(numThreads);
for (int i=0; i<10; i++) {
exec.execute(new Runnable() {
public void run() {
...
Add up a column of numbers at the Unix shell
...nt(x) for x in sys.stdin))" Traceback (most recent call last): File "<string>", line 1, in <module> File "<string>", line 1, in <genexpr> ValueError: invalid literal for int() with base 10: '\n'
– don bright
Jun 28 at 1:10
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Rails migration: t.references with alternative name?
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You can do it this way:
create_table :courses do |t|
t.string :name
t.references :transferrable_as
t.references :same_as
t.timestamps
end
or using t.belongs_to as an alias for t.references
You can't add foreign_key: true to those two references lines. If you want to mark t...
What is the difference (if any) between Html.Partial(view, model) and Html.RenderPartial(view,model)
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The only difference is that Partial returns an MvcHtmlString, and must be called inside <%= %>, whereas RenderPartial returnsvoid and renders directly to the view.
If you look at the source code, you'll see that they both call the same internal method, passing a StringWri...
What does PermGen actually stand for?
...Briefly, it contains the Java objects associated with classes and interned strings. In Sun's client implementation with sharing on, classes.jsa is memory mapped to form the initial data, with about half read-only and half copy-on-write.
Java objects that are merely old are kept in the Tenured Gener...
GUI-based or Web-based JSON editor that works like property explorer [closed]
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Generally when I want to create a JSON or YAML string, I start out by building the Perl data structure, and then running a simple conversion on it. You could put a UI in front of the Perl data structure generation, e.g. a web form.
Converting a structure to JSON is very...
Clearing NSUserDefaults
...Defaults] to store application settings. This consists of roughly a dozen string values. Is it possible to delete these values permanently instead of just setting them to a default value?
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Express-js wildcard routing to cover everything under and including a path
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Passing in an array of strings is preferential to me as well. Unfortunately: passing an array to app.VERB() is deprecated and will be removed in 4.0
– CodeWarrior
Jul 26 '13 at 16:36
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Why exactly is eval evil?
...s non-Lisp languages, because in those languages, eval() typically takes a string argument, and the user's input is typically spliced in. The user can include a quote in their input and escape into the generated code. But in Lisp, EVAL's argument is not a string, and user input cannot escape into th...
logger configuration to log to file and print to stdout
I'm using Python's logging module to log some debug strings to a file which works pretty well. Now in addition, I'd like to use this module to also print the strings out to stdout. How do I do this? In order to log my strings to a file I use following code:
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