A Java Syntax Quirk(blog.uncommons.org)

21 pointsby raganwald18 anni fa7 comments

blog.uncommons.org

http://blog.uncommons.org/2008/08/24/a-java-syntax-quirk/

2 comments

I'm not sure why this is a quirk. The reader has overloaded the meaning of an identifier followed by a colon and a string following two slashes. All inputs must be considered in context. A bare URL has no meaning in Java, so the given construct must not be a URL if it parses and does not produce an error.

I mean, are we expecting the parser to output "You didn't meant to put a URL on line X"?

nuclear_eclipse18 anni fa

What is the point of allowing labels in Java when goto is not available? Is there some other way of using/referencing labels that I am unaware of?

13ren18 anni fa

break. One usecase: you have loops nested 3 deep, and you want to end it all when you find something. You label the outermost loop "exit", and then say "break exit;"

I think continue can use labels, too. (EDITED)

jamongkad18 anni fa

Forgive me but this is going to be a bit off topic. I think it's considered poor taste when a hacker decides to utilize nested loops 3 levels deep.

Tichy18 anni fa

Sometimes you might have no other choice? I think there are more important things to worry about than this.

ricky_clarkson18 anni fa

I consider it poor taste when a hacker uses a loop (other than a tail call). Nesting is irrelevant.

gdee18 anni fa

oh... the height of silliness...

[deleted]18 anni fa