java.util
Interface Collection
- All Known Subinterfaces:
- List, Set, SortedSet
- All Known Implementing Classes:
- AbstractCollection, AbstractList, AbstractSet, ArrayList, HashSet, LinkedHashSet, LinkedList, TreeSet
- public interface Collection
size
public int size()
isEmpty
public boolean isEmpty()
contains
public boolean contains(Object)
iterator
public Iterator iterator()
toArray
public Object[] toArray()
toArray
public Object[] toArray(Object[])
add
public boolean add(Object)
remove
public boolean remove(Object)
containsAll
public boolean containsAll(Collection)
addAll
public boolean addAll(Collection)
removeAll
public boolean removeAll(Collection)
retainAll
public boolean retainAll(Collection)
clear
public void clear()
equals
public boolean equals(Object)
- Overrides:
equals
in class Object
hashCode
public int hashCode()
- Overrides:
hashCode
in class Object