사용 중인 리소스 해제 연습

Refactor the writeZipEntriesToFile method to use the Java 7 try-with-resources construct. The program should not have commented code.

Implement the finalize method after first thinking about what exactly it should contain. Refactor the getUsers method to use the Java 7 try-with-resources construct.

In the FakeConnection class, implement the AutoCloseable interface so that FakeConnection objects can be used in try-with-resources blocks. The close() method should display the phrase "Closing database connection..." In the try block, call the usefulOperation() method and then the unsupportedOpera