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| Interface Summary | |
|---|---|
| Collection | Collection is the root of the collection hierarchy. |
| Iterator | An Iterator is used to sequence over a collection of objects. |
| List | List is a collection which maintains an ordering for its elements. |
| Map | |
| Map.Entry | |
| RandomAccess | RandomAccess is implemented by List implementations that support
fast (usually constant time) random access. |
| Set | |
| Class Summary | |
|---|---|
| AbstractCollection | AbstractCollection is an abstract implementation of the Collection interface. |
| AbstractList | AbstractList is an abstract implementation of the List interface, optimized for a backing store which supports random access. |
| ArrayList | ArrayList is an implementation of List, backed by an array. |
| Arrays | Arrays contains static methods which operate on arrays. |
| HashMap | An implementation of Map that offers constant time retrieval and amortized constant time insertion. |
| HashSet | An implementation of Set that offers constant time retrieval and amortized constant time insertion. |
| Exception Summary | |
|---|---|
| HashCodeNotOverriddenException | This runtime exception is thrown if you put an object in a java.util.HashSet that has inherited its hashCode() method directly from java.lang.Object. |
| NoSuchElementException | This runtime exception is thrown when trying to retrieve an element past the end of an Enumeration, or the first or last element from an empty Vector. |
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