In C# you can make a block inside of a method that is not attached to any other statement.
public void TestMethod()
{
{
string x
Scope and garbage collection: When you leave the unattached block, any variables declared in it go out of scope. That lets the garbage collector clean up those objects.
Ray Hayes points out that the .NET garbage collector will not immediately collect the out-of-scope objects, so scoping is the main benefit.