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Oracle Certified Professional: Java SE Developer 1Z0-831 (Java SE 25) · Domain 4: Handling exceptions

Try-with-resources, AutoCloseable and reverse close order

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Last reviewed September 25, 2026 · Leer en español

Many objects hold resources outside the JVM, such as open files, network sockets and database connections, and they must be closed when you are done. Closing them reliably in a finally block is verbose and easy to get wrong. The try-with-resources statement automates it: resources declared in parentheses after try are closed automatically when the block finishes, whether it completes normally or throws.

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