Creating a resource that can be used with the try-with-resources technique - Java Language Basics

Java examples for Language Basics:try with Resources

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Description

Creating a resource that can be used with the try-with-resources technique

Demo Code

public class Main {

    public static void main(String[] args) {
        try (FirstAutoCloseableResource resource1 = new FirstAutoCloseableResource();
                SecondAutoCloseableResource resource2 = new SecondAutoCloseableResource()) {
            resource1.manipulateResource();
            resource2.manipulateResource();
        } catch (Exception e) {
            e.printStackTrace();/*from   w ww.j  a  va  2  s .  c om*/
            for (Throwable throwable : e.getSuppressed()) {
                System.out.println(throwable);
            }
        }

    }
}
class SecondAutoCloseableResource implements AutoCloseable {

    @Override
    public void close() throws Exception {
        // Close the resource as appropriate 
        System.out.println("SecondAutoCloseableResource close method executed");
        throw new UnsupportedOperationException(
                "A problem has occurred in SecondAutoCloseableResource");
    }

    public void manipulateResource() {
        // Perform some resource specific operation
        System.out.println("SecondAutoCloseableResource manipulateResource method executed");
    }
}
 class FirstAutoCloseableResource implements AutoCloseable {

    @Override
    public void close() throws Exception {
        // Close the resource as appropriate
        System.out.println("FirstAutoCloseableResource close method executed");
        throw new UnsupportedOperationException(
                "A problem has occurred in FirstAutoCloseableResource");
    }

    public void manipulateResource() {
        // Perform some resource specific operation
        System.out.println("FirstAutoCloseableResource manipulateResource method executed");
    }
}

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