Java技能树-集合-HashSet类

1 需求

2 接口

Class HashSet

public class HashSet extends AbstractSet implements Set, Cloneable, Serializable

java.lang.Object 
        java.util.AbstractCollection 
                java.util.AbstractSet 
                        java.util.HashSet 

• Constructor Detail
  • public HashSet()
  • public HashSet(Collection c)
  • public HashSet(int initialCapacity, float loadFactor)
  • public HashSet(int initialCapacity)
• Method Detail
  • public Iterator iterator()
  • public int size()
  • public boolean isEmpty()
  • public boolean contains(Object o)
  • public boolean add(E e)
  • public boolean remove(Object o)
  • public void clear()
  • public Object clone()
  • public Spliterator spliterator()

3 示例代码

4 参考资料