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ArrayIndexOutOfBoundsException when using the ArrayList's iterator
...ed the proper usage of the iterator. So here is a quick example:
Iterator<Object> it = arrayList.iterator();
while(it.hasNext())
{
Object obj = it.next();
//Do something with obj
}
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Is there an ExecutorService that uses the current thread?
...ExecutorService() {
super(1, 1, 0, TimeUnit.DAYS, new SynchronousQueue<Runnable>(),
new ThreadPoolExecutor.CallerRunsPolicy());
}
@Override public void shutdown() {
super.shutdown();
signal.countDown();
}
public static ExecutorService getInstance() {
return Si...
How can you strip non-ASCII characters from a string? (in C#)
...in = '\u0000';
var max = '\u007F';
return source.Select(c => c < min ? nil : c > max ? nil : c).ToText();
}
public static string ToText(this IEnumerable<char> source)
{
var buffer = new StringBuilder();
foreach (var c in source)
buffer.Append(c);
return bu...
Difference between Java Enumeration and Iterator
...One simple fact but haven't mentioned in previous answers is that Iterator<T> is used with Iterable<T> to serve in interpreting for(_type_ element:collection){...} structure.
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imp...
Super-simple example of C# observer/observable with delegates
...rnal sealed class Observer : IObserver
{
private readonly Lazy<IList<IObservable>> observables =
new Lazy<IList<IObservable>>(() => new List<IObservable>());
public Observer()
{
}
public Observer(IObservable o...
Does JSON syntax allow duplicate keys in an object?
...fuse duplicate keys. But when deserializing some JSON object into a std::multimap it would make sense to accept duplicate keys as normal.
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ActionController::InvalidAuthenticityToken
... was returned to the user.
The solution for Rails 3:
Add:
skip_before_filter :verify_authenticity_token
or as "sagivo" pointed out in Rails 4 add:
skip_before_action :verify_authenticity_token
On pages which do caching.
As @toobulkeh commented this is not a vulnerability on :index, :s...
Getting raw SQL query string from PDO prepared statements
...
why not just use strtr(): faster, simpler, same results. strtr($query, $params);
– Tony Chiboucas
Oct 10 '14 at 20:44
...
Serializing PHP object to JSON
...9-01. Still, this answer seems to gain upvotes. If you're still using PHP < 5.4, your are creating a security risk and endagering your project. If you have no compelling reasons to stay at <5.4, or even already use version >= 5.4, do not use this answer, and just use PHP>= 5.4 (or, you k...
Remove duplicate elements from array in Ruby
... The reason this works is because when using set operations, the resulting array is treated as a set, which is a data structure that usually has no repeat values. Using a | a (union) would do the same trick.
– Cezar
Aug 11 '13 at 3:58
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