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28 import java.io.IOException;
31 * A {@code Closeable} is a source or destination of data that can be closed.
32 * The close method is invoked to release resources that the object is
33 * holding (such as open files).
38 public interface Closeable extends AutoCloseable {
41 * Closes this stream and releases any system resources associated
42 * with it. If the stream is already closed then invoking this
43 * method has no effect.
45 * @throws IOException if an I/O error occurs
47 public void close() throws IOException;