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Executors.newCachedThreadPool() versus Executors.newFixedThreadPool()
...xed number of threads operating off
a shared unbounded queue. At any
point, at most nThreads threads will
be active processing tasks. If
additional tasks are submitted when
all threads are active, they will wait
in the queue until a thread is
available. If any thread terminates
due t...
Get content uri from file path in android
...Path }, null);
if (cursor != null && cursor.moveToFirst()) {
int id = cursor.getInt(cursor.getColumnIndex(MediaStore.MediaColumns._ID));
cursor.close();
return Uri.withAppendedPath(MediaStore.Images.Media.EXTERNAL_CONTENT_URI, "" + id);
} else {
if (imageFile.exists()) {
...
Is there a way to specify how many characters of a string to print out using printf()?
Is there a way to specify how many characters of a string to print out (similar to decimal places in int s)?
8 Answers
...
What's the difference between @JoinColumn and mappedBy when using a JPA @OneToMany association
...any, but the underlying table has a column which does, then you can use @JoinTable to map it. This is an unusual situation, because you would normally map the column in the object which corresponds to its table, but it can happen, and it is perfectly legitimate.
– Tom Anderson
...
Handling an empty UITableView. Print a friendly message
...So instead of showing the
background image of the app, I would prefer to print a friendly message in the screen, such as:
2...
string sanitizer for filename
...name
Put the string in lower case
Remove foreign accents such as Éàû by convert it into html entities and then remove the code and keep the letter.
Replace Spaces with dashes
Encode special chars that could pass the previous steps and enter in conflict filename on server. ex. "中文百强网"
Re...
C# 5 async CTP: why is internal “state” set to 0 in generated code before EndAwait call?
... was giving a talk about the new C# "async" feature, in particular delving into what the generated code looked like, and the GetAwaiter() / BeginAwait() / EndAwait() calls.
...
What are copy elision and return value optimization?
...
Introduction
For a technical overview - skip to this answer.
For common cases where copy elision occurs - skip to this answer.
Copy elision is an optimization implemented by most compilers to prevent extra (potentially expens...
Mock vs MagicMock
...y was MagicMock made a separate thing rather than just folding the ability into the default mock object?
A: One reasonable answer is that the way MagicMock works is that it preconfigures all these protocol methods by creating new Mocks and
setting them, so if every new mock created a bunch of...
ASP.NET MVC ambiguous action methods
...ased solely on signature, so this will fail:
public ActionResult MyMethod(int someInt) { /* ... */ }
public ActionResult MyMethod(string someString) { /* ... */ }
However, it does support method overloading based on attribute:
[RequireRequestValue("someInt")]
public ActionResult MyMethod(int som...