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When to use generic methods and when to use wild-card?
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Consider following example from The Java Programming by James Gosling 4th edition below where we want to merge 2 SinglyLinkQueue:
public static <T1, T2 extends T1> void merge(SinglyLinkQueue<T1> d, SinglyLinkQueue<T2> s){
// merge s element into d
}
publ...
Best way for a 'forgot password' implementation? [closed]
...est a password reset.
Optionally at this stage you can confirm the request by asking for additional information such as the answer to a predefined security question or their date of birth etc. This extra level stops users receiving emails they didn't request.
Look up the user's account. Save a tempo...
Why is there no xrange function in Python3?
...ge. I'm not sure why you're seeing a slowdown, since the iterator returned by your xrange function is exactly what you'd get if you iterated over range directly.
I'm not able to reproduce the slowdown on my system. Here's how I tested:
Python 2, with xrange:
Python 2.7.3 (default, Apr 10 2012, 23...
Python strptime() and timezones?
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How to pass a class type as a function parameter
...icate any particular type so the compiler doesn't know what type to infer. By changing the type of returningClass to include T you give the compiler a way to determine the generic parameter.
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Logical operator in a handlebars.js {{#if}} conditional
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This is possible by 'cheating' with a block helper. This probably goes against the Ideology of the people who developed Handlebars.
Handlebars.registerHelper('ifCond', function(v1, v2, options) {
if(v1 === v2) {
return options.fn(this)...
Detect if stdin is a terminal or pipe?
... a tty? stackoverflow.com/q/16305971/96656
– Mathias Bynens
Apr 30 '13 at 17:57
Note: You need to check stdout (STDOUT...
How to pass a user defined argument in scrapy spider
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Nullable vs. int? - Is there any difference?
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How to un-commit last un-pushed git commit without losing the changes
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