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Is there a way to instantiate a class by name in Java?
...vil because it can defeat Java's checked exceptions).
For example:
Class<?> clazz = Class.forName("java.util.Date");
Object date = clazz.newInstance();
Method 2
An alternative safer approach which also works if the class doesn't have any no-arg constructors is to query your class object t...
How to get the raw value an field?
How can i get the "real" value of an <input type="number"> field?
4 Answers
...
Keep ignored files out of git status
... added files to repository, you can:
git update-index --assume-unchanged <file>
or remove them from repository by
git rm --cached <file>
Edit
This article explains that too
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Why there is no ConcurrentHashSet against ConcurrentHashMap
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There's no built in type for ConcurrentHashSet because you can always derive a set from a map. Since there are many types of maps, you use a method to produce a set from a given map (or map class).
Prior to Java 8, you produce a concurren...
How to remove .html from URL?
...or removing of .html from the url, simply link to the page without .html
<a href="http://www.example.com/page">page</a>
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Detecting when the 'back' button is pressed on a navbar
...t further details.
For those of you however in that situation there's an alternative. Detecting when a view controller is being popped is possible by overriding willMove(toParentViewController:). The basic idea is that a view controller is being popped when parent is nil.
Check out "Implementing a...
What's a good way to extend Error in JavaScript?
... this.stack = (new Error()).stack;
}
MyError.prototype = new Error; // <-- remove this if you do not
// want MyError to be instanceof Error
You could sniff the stack, unshift unwanted elements from it and extract information like fileName and lineNumber, ...
Count number of occurrences of a pattern in a file (even on same line)
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Is there no way to do this for multiple files? Let's say I want to see the number of occurrences per file on a set of files. I can do it per line with grep -c *, but not per instance.
– Keith Tyler
Apr 11 '17 at 23:13
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iOS 6 apps - how to deal with iPhone 5 screen size? [duplicate]
...ne 5, and iPhone 5).
If that sounds ugly, then you could go with the default letterboxed model where the extra points/pixels just show up black.
Edit
To enable your apps to work with iPhone 5, you need to add a retina version of the launcher image. It should be named Default-568h@2x.png. And it h...
How to get xdebug var_dump to show full object/array
... You may also have a pretty html output with something like this: return '<pre>'.json_encode($myvar, JSON_PRETTY_PRINT).'</pre>';
– David
Oct 8 '14 at 10:58
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