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package java.io;


Signals that an attempt to open the file denoted by a specified pathname has failed.

This exception will be thrown by the FileInputStream, FileOutputStream, and RandomAccessFile 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
Since: 1.0
/** * 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} 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 * @since 1.0 */
public class FileNotFoundException extends IOException { private static final long serialVersionUID = -897856973823710492L;
Constructs a FileNotFoundException with null as its error detail message.
/** * Constructs a <code>FileNotFoundException</code> with * <code>null</code> as its error detail message. */
public FileNotFoundException() { super(); }
Constructs a FileNotFoundException with the specified detail message. The string s can be retrieved later by the Throwable.getMessage method of class java.lang.Throwable.
Params:
  • s – the detail message.
/** * 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 FileNotFoundException with a detail message consisting of the given pathname string followed by the given reason string. If the reason argument is null then it will be omitted. This private constructor is invoked only by native I/O methods.
Since:1.2
/** * 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 + ")")); } }