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What is the difference between == and Equals() for primitives in C#?
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Short answer:
Equality is complicated.
Detailed answer:
Primitives types override the base object.Equals(object) and return true if the boxed object is of the same type and value. (Note that it will also work for nullable types; non-null nullab...
Is REST DELETE really idempotent?
... NOT have side effects, and so are
inherently idempotent. "
The key bit there is the side-effects of N > 0 identical requests is the same as for a single request.
You would be correct to expect that the status code would be different but this does not affect the core concept of idempotency...
Can you explain the concept of streams?
...tion of a sequence of bytes. Each stream provides means for reading and writing bytes to its given backing store. But what is the point of the stream? Why isn't the backing store itself what we interact with?
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When do you use Java's @Override annotation and why?
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Use it every time you override a method for two benefits. Do it so that you can take advantage of the compiler checking to make sure you actually are overriding a method when you think you are. This way, if you make a common mi...
The requested operation cannot be performed on a file with a user-mapped section open
...nto my bin folder, after stopping the main service, I am getting an error with one file (TexteDll). The error is:
28 Answer...
Why is  appearing in my HTML? [duplicate]
...&#65279 is the Unicode Character 'ZERO WIDTH NO-BREAK SPACE' (U+FEFF). It may be that you copied it into your code via a copy/paste without realizing it. The fact that it's not visible makes it hard to tell if you're using an editor that displays actual unicode characters.
One option is to open...
do {…} while(false)
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It's more than a disguised goto. It is a restricted (structured) goto.
– Thomas Eding
Feb 22 '10 at 20:56
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How to check whether a string is Base64 encoded or not
I want to decode a Base64 encoded string, then store it in my database. If the input is not Base64 encoded, I need to throw an error.
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notifyDataSetChanged example
...Application the notifyDataSetChanged() method for an ArrayAdapter but it doesn't work for me.
5 Answers
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What is the difference between a function expression vs declaration in JavaScript? [duplicate]
...hes that line of code.
So if you try to call a function expression before it's loaded, you'll get an error! If you call a function declaration instead, it'll always work, because no code can be called until all declarations are loaded.
Example: Function Expression
alert(foo()); // ERROR! foo was...