... If null were an Object, it would support the methods of java.lang.Object such as equals(). However, this is not the case - any method invocation on a null results in a NullPointerException. And this is what the Java Language Specification has to sa...

...uld stop using SecureString . Looks like PG guys are dropping support for it. Possibly even pull it in the future - https://github.com/dotnet/apireviews/tree/master/2015-07-14-securestring . We should remove encryption from SecureString across all platforms in .NET Core - We should obsolete ...

...lue is the empty string and the control is not focused (e.g. by displaying it inside a blank unfocused control). All U+000D CARRIAGE RETURN U+000A LINE FEED character pairs (CRLF) in the hint, as well as all other U+000D CARRIAGE RETURN (CR) and U+000A LINE FEED (LF) characters in the hint, must be ...

...programmers and libraries have different approaches and class-handling utility functions to paper over some of the uglier parts of the language. The result is that in mixed company you will have a mishmash of metaclasses, all behaving slightly differently. What's worse, most JavaScript tutorial mat...

... Not only does it not get executed, it doesn't even get compiled. #if is a preprocessor command, which gets evaluated before the actual compilation step. The code inside that block doesn't appear in the compiled binary. It's often used fo...

I was under the assumption that REST was a web service but it seems that I am incorrect in thinking this - so, what is REST? ...

... array1.equals(array2) is the same as array1 == array2, i.e. is it the same array. As @alf points out it's not what most people expect. Arrays.equals(array1, array2) compares the contents of the arrays. Similarly array.toString() may not be very useful and you need to use Arrays.toStr...

...input. Hint: The alphabet doesn't necessarily have to be of letters. But it has to be of symbols which are atomic for the language understood by parser/lexer. Symbols for the lexer: ASCII characters. Symbols for the parser: the particular tokens, which are terminal symbols of their grammar. They ...

I've just started using ReSharper with Visual Studio (after the many recommendations on SO). To try it out I opened up a recent ASP.NET MVC project. One of the first and most frequent things I've noticed it suggesting is to change most/all my explicit declarations to var instead. For example: ...

... Clone is broken, so dont use it. THE CLONE METHOD of the Object class is a somewhat magical method that does what no pure Java method could ever do: It produces an identical copy of its object. It has been present in the primordial Object s...