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Strip Leading and Trailing Spaces From Java String
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With Java-11 and above, you can make use of the String.strip API to return a string whose value is this string, with all leading and trailing whitespace removed. The javadoc for the same reads :
/**
* Returns a string whose value is this string, with all leading
* and trailing {@lin...
Rails 4: before_filter vs. before_action
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@JohnWhitley - deprecation doesn't break the API. That's the whole point of deprecation.
– Grant Birchmeier
Apr 29 '15 at 14:26
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Font size of TextView in Android application changes on changing font size from native settings
...turn resources;
}
however, Resource#updateConfiguration is deplicated in API level 25, which means it will be unsupported some day in the future.
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Converting A String To Hexadecimal In Java
...tring(myString.getBytes(/* charset */));
http://commons.apache.org/codec/apidocs/org/apache/commons/codec/binary/Hex.html
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Convert JSON String to Pretty Print JSON output using Jackson
...e(new FileReader("input.json"), MyClass.class);
// this is Jackson 1.x API only:
ObjectWriter writer = mapper.defaultPrettyPrintingWriter();
// ***IMPORTANT!!!*** for Jackson 2.x use the line below instead of the one above:
// ObjectWriter writer = mapper.writer().withDefaultPretty...
List of all special characters that need to be escaped in a regex
... at the javadoc of the Pattern class: http://docs.oracle.com/javase/8/docs/api/java/util/regex/Pattern.html
You need to escape any char listed there if you want the regular char and not the special meaning.
As a maybe simpler solution, you can put the template between \Q and \E - everything betwee...
Why can't I define a static method in a Java interface?
...d write SomeClass.RESET(). So you don't need an interface to describe that API; its static. Interfaces are used when you don't know the concrete type at compile-time. That's never the case with a static method.
– erickson
Sep 2 '16 at 19:43
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node.js remove file
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Async exists is deprecated nodejs.org/api/fs.html#fs_fs_exists_path_callback
– Mirodinho
Nov 9 '16 at 17:06
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How to save the output of a console.log(object) to a file?
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You can use the Chrome DevTools Utilities API copy() command for copying the string representation of the specified object to the clipboard.
If you have lots of objects then you can actually JSON.stringify() all your objects and keep on appending them to a string. N...
What is this: [Ljava.lang.Object;?
...ct) and then reflecting on the returned Class object. Ideally, though, the API should've been designed such that reflection is not necessary (see Effective Java 2nd Edition, Item 53: Prefer interfaces to reflection).
On a more "useful" toString for arrays
java.util.Arrays provides toString overl...