Closures have nothing to do with dynamic languages, and everything to do with simpler, cleaner, safer code.
Wouldn't you rather write this:
read(new FileReader("foo.txt")) {
|Reader reader|
reader.read(); // etc
}
Than:
FileReader reader = null;
try {
reader = new FileReader("foo.txt");
reader.read(); // etc
} finally {
// Verbose, tricky and error prone
try {
if (r != null) {
r.close();
}
} catch (IOException ignore) {}
}
Or even:
read(new FileReader("foo.txt"),
// Verbose and hard to understand
new FileProcess() {
public void doWithReader(Reader reader) {
reader.read(); // etc
}
} );
I don't know about you, but this is code that I write many times per day. |
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