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Comparing boxed Long values 127 and 128
...variables the value 127 (cached), the same object instance will be pointed by all references. (N variables, 1 instance)
If you set to N Long variables the value 128 (not cached), you will have an object instance pointed by every reference. (N variables, N instances)
That's why this:
Long val1 = 1...
Is well formed without a ?
...ta entry pages without form tags. Although it isn't considered "standard" by many, it is NOT inappropriate to use inputs without a <form>. My projects were instances where I needed complete control over how the page behaved and the default form behavior was getting in the way. Was able to p...
How to output loop.counter in python jinja template?
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ValueError: math domain error
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One Activity and all other Fragments [closed]
...gment is bad practice. There is a reason methods like public View findViewById (int id) are PUBLIC.
Now the question gets simpler: Do I need multiple, independent life cycle events and backstacks? If you think yeah maybe, use fragments. If you think never ever, don't use fragments.
In the en...
Can you make just part of a regex case-insensitive?
...
Perl lets you make part of your regular expression case-insensitive by using the (?i:) pattern modifier.
Modern regex flavors allow you to apply modifiers to only part of the regular expression. If you insert the modifier (?ism) in the middle of the regex, the modifier only applies to the pa...
How to merge remote master to local branch
... git pull? Here's a simple example:
You start working on a new feature.
By the time you're ready to push your changes, several commits have been pushed by other developers.
If you git pull (which uses merge), your changes will be buried by the new commits, in addition to an automatically-created ...
The type must be a reference type in order to use it as parameter 'T' in the generic type or method
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How to handle command-line arguments in PowerShell
...ess and assign the arguments in the order they're given, unless overridden by using the proper parameter name, e.g., if your param block lists: $user $pass $server, and you execute yourscript.ps1 a b c, a will be set into $user, b into $pass and c into $server, UNLESS you specifically assign them! S...
Start may not be called on a promise-style task. exception is coming
...ving it to you. You should only ever call Start on a task that you create by calling its constructor, and you shouldn't even do that unless you have a compelling reason to not start the task when you create it; if you want it started right away you should use Task.Run or Task.Factory.StartNew to bo...