filenotfoundexception.java

来自「This is a resource based on j2me embedde」· Java 代码 · 共 87 行

/*
 * @(#)FileNotFoundException.java	1.28 06/10/10
 *
 * Copyright  1990-2008 Sun Microsystems, Inc. All Rights Reserved.  
 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER  
 *   
 * This program is free software; you can redistribute it and/or  
 * modify it under the terms of the GNU General Public License version  
 * 2 only, as published by the Free Software Foundation.   
 *   
 * This program is distributed in the hope that it will be useful, but  
 * WITHOUT ANY WARRANTY; without even the implied warranty of  
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU  
 * General Public License version 2 for more details (a copy is  
 * included at /legal/license.txt).   
 *   
 * You should have received a copy of the GNU General Public License  
 * version 2 along with this work; if not, write to the Free Software  
 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  
 * 02110-1301 USA   
 *   
 * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa  
 * Clara, CA 95054 or visit www.sun.com if you need additional  
 * information or have any questions. 
 *
 */

package java.io;


/**
 * Signals that an attempt to open the file denoted by a specified pathname
 * has failed.
 *
 * <p> This exception will be thrown by the {@link FileInputStream}, {@link
 * FileOutputStream}, and {@link RandomAccessFile} (NOTE: <B>RandomAccessFile</B> 
 * is found in J2ME CDC profiles such as J2ME Foundation Profile) 
 * constructors when a file with the specified pathname does not exist.  
 * It will also be thrown by these constructors if the file does exist but 
 * for some reason is inaccessible, for example when an attempt is made to 
 * open a read-only file for writing.
 *
 * @author  unascribed
 * @version 1.20, 02/02/00
 * @since   JDK1.0
 */

public class FileNotFoundException extends IOException {

    /**
     * Constructs a <code>FileNotFoundException</code> with
     * <code>null</code> as its error detail message.
     */
    public FileNotFoundException() {
	super();
    }

    /**
     * Constructs a <code>FileNotFoundException</code> with the
     * specified detail message. The string <code>s</code> can be
     * retrieved later by the
     * <code>{@link java.lang.Throwable#getMessage}</code>
     * method of class <code>java.lang.Throwable</code>.
     *
     * @param   s   the detail message.
     */
    public FileNotFoundException(String s) {
	super(s);
    }

    /**
     * Constructs a <code>FileNotFoundException</code> with a detail message
     * consisting of the given pathname string followed by the given reason
     * string.  If the <code>reason</code> argument is <code>null</code> then
     * it will be omitted.  This private constructor is invoked only by native
     * I/O methods.
     *
     * @since 1.2
     */
    private FileNotFoundException(String path, String reason) {
	super(path + ((reason == null)
		      ? ""
		      : " (" + reason + ")"));
    }

}