How does java implement inner class closures?
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by thecoop
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Published on 2010-05-10T17:34:30Z
Indexed on
2010/05/10
17:44 UTC
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In Java an anonymous inner class can refer to variables in it's local scope:
public class A {
public void method() {
final int i = 0;
doStuff(new Action() {
public void doAction() {
Console.printf(i); // or whatever
}
});
}
}
My question is how is this actually implemented? How does i get to the anonymous inner doAction implementation, and why does it have to be final?
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