Try-with-resources and return statements in java

Question

I\'m wondering if putting a return statement inside a try-with-resources block prevents the resource to be automatically closed.

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Answer 1

The resource will be closed automatically (even with a return statement) since it implements the AutoCloseable interface. Here is an example which outputs "closed successfully":

public class Main {

    public static void main(String[] args) {
        try (Foobar foobar = new Foobar()) {
            return;
        } catch (Exception e) {
            e.printStackTrace();
        }
    }
}

class Foobar implements AutoCloseable {

    @Override
    public void close() throws Exception {
        System.out.println("closed successfully");
    }
}