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Should you ever use protected member variables?
...r variables?
Depends on how picky you are about hiding state.
If you don't want any leaking of internal state, then declaring all your member variables private is the way to go.
If you don't really care that subclasses can access internal state, then protected is good enough.
If a developer...
Cosmic Rays: what is the probability they will affect a program?
...ers go to huge lengths to make sure the silicon, solder, encapsulation etc doesn't contain any alpha or beta emitters.
– Martin Beckett
Apr 6 '10 at 3:12
16
...
Python: Why is functools.partial necessary?
Partial application is cool. What functionality does functools.partial offer that you can't get through lambdas?
6 Answer...
Background ListView becomes black when scrolling
...cheColorHint(0); From layout I couldn't set the color. But I managed to do it with the above code. I have used this code in 'onCreate' of the list activity. Hope this information also helps.
– Dijo David
Apr 13 '11 at 8:02
...
jQuery - hashchange event
...can detect if the browser supports the event by:
if ("onhashchange" in window) {
//...
}
See also:
Detecting event support without browser sniffing
Emulating onhashchange without setInterval
window.onhashchange
shar...
How to build a framework or library for other developers, the secure way? [closed]
...approaches. This is the guide I now follow when trying to remember what to do when setting up a new framework. :)
Update2 (with Xcode 6 release)
There is a option, exactly that you a re looking for:
Universal Framework for iOS!
Will be my code visible to others? A: No. This Framework will export a ...
Getting the filenames of all files in a folder [duplicate]
...
You could do it like that:
File folder = new File("your/path");
File[] listOfFiles = folder.listFiles();
for (int i = 0; i < listOfFiles.length; i++) {
if (listOfFiles[i].isFile()) {
System.out.println("File " + listOfFiles[...
How to correct TypeError: Unicode-objects must be encoded before hashing?
...coding format like utf-8,
Try this easy way,
This example generates a random number using the SHA256 algorithm:
>>> import hashlib
>>> hashlib.sha256(str(random.getrandbits(256)).encode('utf-8')).hexdigest()
'cd183a211ed2434eac4f31b317c573c50e6c24e3a28b82ddcb0bf8bedf387a9f'
...
Proper usage of Optional.ifPresent()
...; as argument. You're passing it an expression whose type is void. So that doesn't compile.
A Consumer is intended to be implemented as a lambda expression:
Optional<User> user = ...
user.ifPresent(theUser -> doSomethingWithUser(theUser));
Or even simpler, using a method reference:
Op...
How to solve javax.net.ssl.SSLHandshakeException Error?
...ublic certificate from the server you're trying to connect to. That can be done in a variety of ways, such as contacting the server admin and asking for it, using OpenSSL to download it, or, since this appears to be an HTTP server, connecting to it with any browser, viewing the page's security info,...