Java IO.pdf - Nguyen Dang Binh

catch (IOException e) {
System.out.println("Could not determine the canonical path.");
}
String parent = f.getParent();
if (parent != null) {
System.out.println("Parent: " + f.getParent());
}
Java I/O
if (f.canWrite()) System.out.println(f.getName() + " is
writable.");
if (f.canRead()) System.out.println(f.getName() + " is readable.");
if (f.isFile()) {
System.out.println(f.getName() + " is a file.");
}
else if (f.isDirectory()) {
System.out.println(f.getName() + " is a directory.");
}
else {
System.out.println("What is this?");
}
if (f.isAbsolute()) {
System.out.println(f.getPath() + " is an absolute path.");
}
else {
System.out.println(f.getPath() + " is not an absolute path.");
}
long lm = f.lastModified();
if (lm != 0) System.out.println("Last Modified at " + new
Date(lm));
long length = f.length();
if (length != 0) {
System.out.println(f.getName() + " is " + length + " bytes
long.");
}
}
else {
System.out.println("I'm sorry. I can't find the file " + args[i]);
}
}
}
}
Here's the result of running FileSpy on itself:
D:\JAVA\ioexamples\12>java FileSpy FileSpy.java
Name: FileSpy.java
Absolute path: D:\JAVA\ioexamples\12\FileSpy.java
Canonical path: D:\Java\ioexamples\12\FileSpy.java
FileSpy.java is writable.
FileSpy.java is readable.
FileSpy.java is a file.
FileSpy.java is not an absolute path.
Last Modified at Fri Sep 11 15:11:24 PDT 1998
FileSpy.java is 1846 bytes long.
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