Java Reference
In-Depth Information
nameRE
=
Pattern
.
compile
(
sb
.
toString
());
}
catch
catch
(
PatternSyntaxException ex
) {
System
.
err
.
println
(
"Error: RE "
+
sb
.
toString
() +
" didn't compile: "
+
ex
);
}
}
/** Do the filtering. For now, only filter on name */
public
public
boolean
boolean
accept
(
File dir
,
String fileName
) {
File f
=
new
new
File
(
dir
,
fileName
);
iif
(
f
.
isDirectory
()) {
return
return true
true
;
// allow recursion
}
iif
(
nameRE
!=
null
null
) {
return
return
nameRE
.
matcher
(
fileName
).
matches
();
}
// TODO size handling.
// Catchall
return
return false
false
;
}
public
public
String
getName
() {
return
return
name
;
}
}
Exercise for the reader: in the online source directory, you'll find a class called
FindNumFil-
ter
, which is meant to (someday) allow relational comparison of sizes, modification times,
and the like, as most
find
services already offer. Make this work from the command line,
and write a GUI frontend to this program.
