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How do I show an open file in eclipse Package Explorer?
...w -> Preferences -> General -> Keys -> Show In (Show In Target Id: Package Explorer). Mine is ctrl-alt-left arrow, be welcome to copy.
Edit: In Luna Command name has changed a little. Instead of Show In (Show In Target Id: Package Explorer) command is now Show In (Package Explorer).
...
iPhone: How to get current milliseconds?
...od for a while and came to realise it can return an earlier value when you call it after couple of miliseconds (e.g. call it consecutively and you might not end up with an increasing sequence)
– Ege Akpinar
Jun 30 '14 at 10:27
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Calling constructors in c++ without new
...y different things.
The first line creates a new object on the stack by calling a constructor of the format Thing(const char*).
The second one is a bit more complex. It essentially does the following
Create an object of type Thing using the constructor Thing(const char*)
Create an object of...
Get screen width and height in Android
How can I get the screen width and height and use this value in:
29 Answers
29
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Effects of changing Django's SECRET_KEY
...s between views.
protect session data and create random session keys to avoid tampering as well.
create random salt for most password hashers
create random passwords if necessary
create itself when using startproject
create CSRF key
In reality a lot of the items listed here use SECRET_KEY through...
Pure virtual function with implementation
...se type can still define an implementation. A derived class can explicitly call the base class implementation (if access permissions allow it) by using a fully-scoped name (by calling A::f() in your example - if A::f() were public or protected). Something like:
class B : public A {
virtual vo...
UITextfield leftView/rightView padding on iOS7
...s of UITextField instead of the default NSObject
Add a new method named - (id)initWithCoder:(NSCoder*)coder to set the image
- (id)initWithCoder:(NSCoder*)coder {
self = [super initWithCoder:coder];
if (self) {
self.clipsToBounds = YES;
[self setRightViewMode:UITextFieldVi...
Difference between 'new operator' and 'operator new'?
...y unusual unless you're writing something like your own container, you can call operator new directly, like:
char *x = static_cast<char *>(operator new(100));
It's also possible to overload operator new either globally, or for a specific class. IIRC, the signature is:
void *operator new(si...
What's the difference between using CGFloat and float?
...
so you're saying, basically, NEVER use a float or double directly since then you'd be tied to the processor architecture (and I thought fast JVMs solved this years ago :)). So what primitives are safe? int?
– Dan Rosenstark
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Hidden Features of Java
...hen I first discovered it, never heard of it before.
ThreadLocals are typically not so widely known as a way to store per-thread state.
Since JDK 1.5 Java has had extremely well implemented and robust concurrency tools beyond just locks, they live in java.util.concurrent and a specifically interes...