Input and Output - Java - page 389

String . format ( "Destination dir %s must exist" , toDir ));

}
for

for ( File src : fromDir . listFiles ()) {
iif ( src . isDirectory ()) {
File destSubDir = new new File ( toDir , src . getName ());

copyRecursively ( src , destSubDir , true true );

} else else iif ( src . isFile ()) {

copyFile ( src , toDir );
} else else {

System . err . println (
String . format ( "Warning: %s is neither file nor directory" , src ));

}

}

}

public public static static void void copyRecursively ( File fromDir , File toDir ) throws throws IOException {

copyRecursively ( fromDir , toDir , false false );

}

public public static static void void deleteRecursively ( File startDir ) throws throws IOException {

String startDirPath = startDir . getCanonicalPath ();

// Pass one - delete recursively
for

for ( File f : startDir . listFiles ()) {
iif (! f . getCanonicalPath (). startsWith ( startDirPath )) {
throw throw new new IOException ( "Attempted to go out of " + startDir );

}
iif ( f . isDirectory ()) {
deleteRecursively ( f );

}

}
// Pass two - delete whatever's left: files and (empty) directories
for for ( File f : startDir . listFiles ()) {

f . delete ();
iif ( f . exists ()) {
System . err . println ( f + " did not get deleted!" );

}

}

// Pass three - delete the (now empty) starting directory
startDir . delete ();

}

/**
* Copy a tree of files to directory, given File objects representing the files.