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How to sort an ArrayList?
...
Descending:
Collections.sort(mArrayList, new Comparator<CustomData>() {
@Override
public int compare(CustomData lhs, CustomData rhs) {
// -1 - less than, 1 - greater than, 0 - equal, all inversed for descending
return lhs.customInt >...
Rails and PostgreSQL: Role postgres does not exist
...anks!
– Connor Leech
Nov 8 '13 at 9:51
2
Don't know how my set-up came about but I had postgresql...
FIND_IN_SET() vs IN()
...n accepted answer which gives a well received (>80 votes!) answer. As a new user it might be best to focus on unanswered questions and/or asking good questions yourself.
– cfi
Oct 21 '16 at 7:13
...
Writing a compiler in its own language
...me other language (usually Java or C). Once that is done, you can write a new version of the compiler in language Foo. You use the first bootstrap compiler to compile the compiler, and then use this compiled compiler to compile everything else (including future versions of itself).
Most languages...
Usage of protocols as array types and function parameters in swift
...
You can call removeElement() before appending the new element if you wish to avoid duplicates.
– Georgios
Jul 24 '19 at 9:33
...
System.BadImageFormatException: Could not load file or assembly [duplicate]
...
I've upvoted only to compensate your downvote. Be nice to new users. Btw, reboot often helps, but I never tried to run more than twice around the apartment block :).
– Michael Freidgeim
May 20 '13 at 20:21
...
HTML5 Video Dimensions
...nd 'height' properties.
*/
function getVideoDimensionsOf(url){
return new Promise(function(resolve){
// create the video element
let video = document.createElement('video');
// place a listener on it
video.addEventListener( "loadedmetadata", function () {
// retrieve dimension...
What is the difference between the bridge pattern and the strategy pattern?
...Reference;
ConcreteAbstraction1() {
implmentReference = new ImplementationA() // Some implementation
}
void behaviour1() {
implmentReference.behave1();
}
.............
}
class ConcreteAbstraction2 implements IAbstraction {
IImpleme...
Using a custom image for a UITableViewCell's accessoryView and having it respond to UITableViewDeleg
...hey now subclass OPTableViewController).
Firstly, this function returns a new detail disclosure button using our custom graphic:
- (UIButton *) makeDetailDisclosureButton
{
UIButton * button = [UIButton outpostDetailDisclosureButton];
[button addTarget: self
action: @selector(a...
Difference between
...t any of these are legal assignments:
List<? extends Number> foo3 = new ArrayList<Number>(); // Number "extends" Number (in this context)
List<? extends Number> foo3 = new ArrayList<Integer>(); // Integer extends Number
List<? extends Number> foo3 = new ArrayList<D...