/**
* Returns a string representation of this {@code Hashtable} object in the form of a set of
* entries, enclosed in braces and separated by the ASCII characters "<code> , </code>"
* (comma and space). Each entry is rendered as the key, an equals sign {@code =}, and the
* associated element, where the {@code toString} method is used to convert the key and element to
* strings.
*
* @return a string representation of this hashtable
*/
public synchronized String toString() {
int max = size() - 1;
if (max == -1) return "{}";
StringBuilder sb = new StringBuilder();
Iterator<Map.Entry<K, V>> it = entrySet().iterator();
sb.append('{');
for (int i = 0; ; i++) {
Map.Entry<K, V> e = it.next();
K key = e.getKey();
V value = e.getValue();
sb.append(key == this ? "(this Map)" : key.toString());
sb.append('=');
sb.append(value == this ? "(this Map)" : value.toString());
if (i == max) return sb.append('}').toString();
sb.append(", ");
}
}
public String toString() {
return key.toString() + "=" + value.toString();
}