1 /** Licensed to the Apache Software Foundation (ASF) under one or more 2 * contributor license agreements. See the NOTICE file distributed with 3 * this work for additional information regarding copyright ownership. 4 * The ASF licenses this file to You under the Apache License, Version 2.0 5 * (the "License"); you may not use this file except in compliance with 6 * the License. You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17 package java.io; 18 19 /*** Defines an interface for classes that can (or need to) be closed once they are not used any longer. This usually includes all 20 * sorts of {@link InputStream}s and {@link OutputStream}s. Calling the {@code close} method releases resources that the object 21 * holds. */ 22 public interface Closeable { 23 24 /*** Closes the object and release any system resources it holds. If the object has already been closed, then invoking this 25 * method has no effect. 26 * 27 * @throws IOException if any error occurs when closing the object. */ close()28 public void close () throws IOException; 29 } 30