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Why is “final” not allowed in Java 8 interface methods?
... implements A, B {
}
Here, everything is good; C inherits foo() from A. Now supposing B is changed to have a foo method, with a default:
interface B {
default void foo() { ... }
}
Now, when we go to recompile C, the compiler will tell us that it doesn't know what behavior to inherit for f...
Can I nest a element inside an using HTML5?
...
Right now I have an <a> inside the <button> (with the same href) as a backup if JS is disabled, and six months from now I'm definitely going to be embarrassed that I admitted that.
– TheDudeAbides
...
Protected methods in Objective-C
...) < SuperClassProtectedMethods >
@end
SuperClass.m: (compiler will now force you to add protected methods)
#import "SuperClassProtectedMethods.h"
@implementation SuperClass
- (void) protectedMethod:(NSObject *)foo {}
@end
SubClass.m:
#import "SuperClassProtectedMethods.h"
// Subclass can...
Difference between Math.Floor() and Math.Truncate()
...ctly if the text, I totally got the examples wrong. Hopefully that's fixed now.
– paxdiablo
May 5 '09 at 4:16
Sorry to...
What is an optional value in Swift?
...String are completely different types.
Here's the most important thing to know: An optional is a kind of container. An optional String is a container which might contain a String. An optional Int is a container which might contain an Int. Think of an optional as a kind of parcel. Before you open it ...
Google Maps API v3: Can I setZoom after fitBounds?
...etting the zoom... I'm still wondering why this step is needed, but anyway now it works... thanks a lot Jim!
– daveoncode
Nov 14 '11 at 10:26
...
Converting String to Int with Swift
... This solution was only right for Swift and not for Swift2. Now you should use: Int(firstText.text)
– gurehbgui
Sep 27 '15 at 10:36
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How can prepared statements protect from SQL injection attacks?
...t exactly true. MySQL has supported prepared statements for quite a while now. The PDO driver has as well. But yet, MySQL queries were still prepared by PDO by default, last time i checked.
– cHao
Aug 18 '13 at 9:32
...
Maven compile with multiple src directories
... This was a good idea a couple years ago but there are much better options now. build-helper listed above is my preferred options.
– sal
May 6 '11 at 1:51
5
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How to generate all permutations of a list?
...re using an older Python (<2.6) for some reason or are just curious to know how it works, here's one nice approach, taken from http://code.activestate.com/recipes/252178/:
def all_perms(elements):
if len(elements) <=1:
yield elements
else:
for perm in all_perms(elemen...