数据结构
- 红黑树
- 实现了NavigableMap,是一个key有序的Map
源码
成员变量
private final Comparator<? super K> comparator;
private transient Entry<K,V> root;
/** * The number of entries in the tree */
private transient int size = 0;
/** * The number of structural modifications to the tree. */
private transient int modCount = 0;
构造函数
public TreeMap() {
comparator = null;
}
public TreeMap(Comparator<? super K> comparator) {
this.comparator = comparator;
}
public TreeMap(Map<? extends K, ? extends V> m) {
comparator = null;
putAll(m);
}
/** * Constructs a new tree map containing the same mappings and * using the same ordering as the specified sorted map. This * method runs in linear time. */
public TreeMap(SortedMap<K, ? extends V> m) {
comparator = m.comparator();
try {
buildFromSorted(m.size(), m.entrySet().iterator(), null, null);
} catch (java.io.IOException cannotHappen) {
} catch (ClassNotFoundException cannotHappen) {
}
}
还没有评论,来说两句吧...