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I ran across a piece of C# code today I had not seen before. The programmer defined a block of code using only curly braces (no if, class, function, etc).
{
int i = 0;
}
i++; //compile error
Is there a purpose to this other than making the code look more organized? Is it good, bad, or whatever practice to use this "floating" contexts?
316
In programming, curly braces (the { and } characters) are used in a variety of ways. In C/C++, they are used to signify the start and end of a series of statements. In the following expression, everything between the { and } are executed if the variable mouseDOWNinText is true. See event loop.
For example, Java and C++ are often referred to as curly brace languages because curly braces are used to define the start and end of a code block.
In Java when you open a curly brace it means that you open a new scope (usually it's a nested scope). One important thing to understand is that a variable that you'll define inside this scope (which end where you put the closing curly brace) will not be recognized outside of the scope.
90) Can the curly brackets { } be used to enclose a single line of code? While curly brackets are mainly used to group several lines of codes, it will still work without error if you used it for a single line.
You can use an open and close set of curly braces to define a self containing block, which has its own scope.
This is generally not considered good programming practice, though.
Usually if someone is doing something like this, it's probably better to create a method/function in its place.
62
Any variable inside the "scope" of these curly braces will be out of scope outside of it.
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