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Proper usage of Optional.ifPresent()
...; user = ...
user.ifPresent(theUser -> doSomethingWithUser(theUser));
Or even simpler, using a method reference:
Optional<User> user = ...
user.ifPresent(this::doSomethingWithUser);
This is basically the same thing as
Optional<User> user = ...
user.ifPresent(new Consumer<User...
Import a module from a relative path
How do I import a Python module given its relative path?
22 Answers
22
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What's a “static method” in C#?
What does it mean when you add the static keyword to a method?
9 Answers
9
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How do I disable right click on my web page?
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You can do that with JavaScript by adding an event listener for the "contextmenu" event and calling the preventDefault() method:
document.addEventListener('contextmenu', event => event.preventDefault());
That being said: DON'T DO IT.
Why? Because it achieves nothing other than a...
How to download/checkout a project from Google Code in Windows?
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If you don't want to install anything but do want to download an SVN or GIT repository, then you can use this: http://downloadsvn.codeplex.com/
I have nothing to do with this project, but I just used it now and it saved me a few minutes. Maybe it will help someone.
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Can you attach Amazon EBS to multiple instances?
...can I use this same setup and attach the EBS to multiple machine instances or what's another solution?
11 Answers
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Android - Set fragment id
How can I set a Fragment 's Id so that I can use getSupportFragmentManager().findFragmentById(R.id.--) ?
7 Answers
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How to check if a view controller is presented modally or pushed on a navigation stack?
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I found this in another SO post. But, does not work if the pushed view controller's parent is a modal; which is the situation I'm having.
– meaning-matters
May 12 '14 at 23:12
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Git status shows files as changed even though contents are the same
...eone else and am trying to commit the unstaged changes to the local repository. However, a lot (if not every) file appears as modified even though the contents are exactly the same.
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Difference between malloc and calloc?
...calloc() gives you a zero-initialized buffer, while malloc() leaves the memory uninitialized.
For large allocations, most calloc implementations under mainstream OSes will get known-zeroed pages from the OS (e.g. via POSIX mmap(MAP_ANONYMOUS) or Windows VirtualAlloc) so it doesn't need to write the...