Java Utililty Methods Preference Remove

void removeAll(Preferences prefs, boolean deep)
Traverse a preference node and optionally all children nodes and remove any keys found.

String[] keys;
String[] children;
int i;
keys = prefs.keys();
for (i = 0; i < keys.length; i++) {
 prefs.remove(keys[i]);
if (deep) {
...

void removeCLOB(Preferences prefs, String key)
Removes the character large object (CLOB) associated with the specified key in the given preference node, if any.

prefs.remove(key);
try {
 getClobStorage(prefs, key).removeNode();
} catch (BackingStoreException bse) {

void removeKeys(Preferences prefs, String key, int from, int to)
remove Keys

for (int i = from; i < to;)
 prefs.remove(key + '.' + (++i));
if (from == 0)
 prefs.remove(key + ".#");

void removePref(String prefName, Object obj)
remove Pref

Preferences prefs = Preferences.userNodeForPackage(obj.getClass());
prefs.remove(prefName);

void resetPreferences()
Removes all Preferences nodes except for the system and user root nodes.

resetPreferences(Preferences.userRoot());
resetPreferences(Preferences.systemRoot());