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Get root view from current activity

... view of your activity (so you can add your contents there) use findViewById(android.R.id.content).getRootView() Also it was reported that on some devices you have to use getWindow().getDecorView().findViewById(android.R.id.content) instead. Please note that as Booger reported, this may be b...
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How do you match only valid roman numerals with a regular expression?

...tched by IX Just keep in mind that that regex will also match an empty string. If you don't want this (and your regex engine is modern enough), you can use positive look-behind and look-ahead: (?<=^)M{0,4}(CM|CD|D?C{0,3})(XC|XL|L?X{0,3})(IX|IV|V?I{0,3})(?=$) (the other alternative being to...
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Good example of livelock?

...", owner.name); } } static class Diner { private String name; private boolean isHungry; public Diner(String n) { name = n; isHungry = true; } public String getName() { return name; } public boolean isHungry() { return isHungry; } ...
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How to change identity column values programmatically?

I have a MS SQL 2005 database with a table Test with column ID . ID is an identity column. 13 Answers ...
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Hide keyboard when scroll UITableView

In my app i want hide keyboard when i start scrolling UITableView. I search about this in internet, and most answer is subclassing UITableView (http://stackoverflow.com/questions/3499810/tapping-a-uiscrollview-to-hide-the-keyboard). ...
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Given a number, find the next higher number which has the exact same set of digits as the original n

...e '4' Proof of correctness: Let's use capital letters to define digit-strings and lower-case for digits. The syntax AB means "the concatenation of strings A and B". < is lexicographical ordering, which is the same as integer ordering when the digit-strings are of equal length. Our original...
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How to have conditional elements and keep DRY with Facebook React's JSX?

...at should be in the component if it has been passed in. What I want to avoid is having to duplicate HTML tags in the if statement. ...
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Install MySQL on Ubuntu without a password prompt

...left blank for a blank root password.) If your shell doesn't support here-strings (zsh, ksh93 and bash support them), use: echo ... | sudo debconf-set-selections share | improve this answer ...
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How to get the first and last date of the current year?

... This outputs strings, not dates. If that's what you really need, yay, but if you can use either, keep the dates as dates, and don't use them as strings. – Jamie F Nov 18 '12 at 4:09 ...
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How do I make a delay in Java?

..., to run the method myTask every second (Java 8): public static void main(String[] args) { final ScheduledExecutorService executorService = Executors.newSingleThreadScheduledExecutor(); executorService.scheduleAtFixedRate(App::myTask, 0, 1, TimeUnit.SECONDS); } private static void myTask()...