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30 * Signals that an attempt to open the file denoted by a specified pathname
33 * <p> This exception will be thrown by the {@link FileInputStream}, {@link
34 * FileOutputStream}, and {@link RandomAccessFile} constructors when a file
35 * with the specified pathname does not exist. It will also be thrown by these
36 * constructors if the file does exist but for some reason is inaccessible, for
37 * example when an attempt is made to open a read-only file for writing.
43 public class FileNotFoundException extends IOException {
44 private static final long serialVersionUID = -897856973823710492L;
47 * Constructs a <code>FileNotFoundException</code> with
48 * <code>null</code> as its error detail message.
50 public FileNotFoundException() {
55 * Constructs a <code>FileNotFoundException</code> with the
56 * specified detail message. The string <code>s</code> can be
57 * retrieved later by the
58 * <code>{@link java.lang.Throwable#getMessage}</code>
59 * method of class <code>java.lang.Throwable</code>.
61 * @param s the detail message.
63 public FileNotFoundException(String s) {
68 * Constructs a <code>FileNotFoundException</code> with a detail message
69 * consisting of the given pathname string followed by the given reason
70 * string. If the <code>reason</code> argument is <code>null</code> then
71 * it will be omitted. This private constructor is invoked only by native
76 private FileNotFoundException(String path, String reason) {
77 super(path + ((reason == null)
79 : " (" + reason + ")"));