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No Exception while type casting with a null in java
...ally print methods call String.valueOf(object) method on the input object. And in valueOf method, this check helps to avoid null pointer exception:
return (obj == null) ? "null" : obj.toString();
For rest of your confusion, calling any method on a null object should throw a null pointer exception...
JavaScript, get date of the next day [duplicate]
... Date().setDate(new Date().getDate() + 1));
– Björn Andreasson
May 22 '19 at 7:43
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C++ “virtual” keyword for functions in derived classes. Is it necessary?
...rence between them other than that the first approach requires more typing and is potentially clearer.
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How to convert JSON to a Ruby hash
...'m surprised nobody pointed out JSON's [] method, which makes it very easy and transparent to decode and encode from/to JSON.
If object is string-like, parse the string and return the parsed result as a Ruby data structure. Otherwise generate a JSON text from the Ruby data structure object and r...
I get a “An attempt was made to load a program with an incorrect format” error on a SQL Server repli
...llow 32bit applications.
Open up IIS Manager, right click on the app pool, and select Advanced Settings (See below)
Then set "Enable 32-bit Applications" to True.
All done!
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HTML “overlay” which allows clicks to fall through to elements behind it [duplicate]
...ng to overlay a element on top of a webpage (to draw arbitrary graphics), and I've come to the point where I can stack it inside of a element on top of everything, but this prevents the user from clicking on any links/buttons/etc.
Is there a way to have its content float on top of everything (it's...
Good examples using java.util.logging [closed]
...ps you from having to tote one more jar file around with your application, and it works well with a good Formatter.
In general, at the top of every class, you should have:
private static final Logger LOGGER = Logger.getLogger( ClassName.class.getName() );
Then, you can just use various facilit...
How do I make a text input non-editable?
...ard [xhtml] tag that drove everyone nuts about which was valid for which standard :/
– BoltClock♦
Feb 19 '14 at 12:11
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Alternatives to dispatch_get_current_queue() for completion blocks in iOS 6?
I have a method that accepts a block and a completion block. The first block should run in the background, while the completion block should run in whatever queue the method was called.
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How do I put variables inside javascript strings?
...e('hello %s, how are you doing', my_name);
This is only a simple example and does not take into account different kinds of data types (like %i, etc) or escaping of %s. But I hope it gives you some idea. I'm pretty sure there are also libraries out there which provide a function like this.
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