java util Part 1 The Collections Framework
The map interfaces Because the map intc·rt.lCes define of maps begins with them, The interfaces tlr pcrt Each interface is examined next, in turn. The Map Interlace The Map interface maps unique keys to values. A key is an object that you use to retrieve a value at...
java util Part 1 The Collections Framework
Storing user Define class in Collection Pay special attention to how the list is displayed in reverse. After the list is modified, litr points to the end of the list. (Remember, litr.hasNext() returns false when the end of the list has been reached.) To traverse the...
java util Part 1 The Collections Framework
Accessing a Collection Via an Iterator Often, you will want to cycle through the elements in a collection. For example, you might want to display each element. By far, the easiest way to do this is to employ an iterator, an object that implements either the Iterator...
java util Part 1 The Collections Framework
The Tree Set Class Tree Set provides an implementation of the Set interface that uses a tree-for storage.' Objects are storminess sorted, ascending order, Access and retrieval times are quite fast, . which makes Teri Set an excellent choice when storing large amounts...
java util Part 1 The Collections Framework
The Hash Set Class Hash Set extends Abstract Set and implements the Set interface. It creates a collection the uses a hash table for storage. As most readers likely know, a hash table information by using a mechanism called hashing. In hashing, the informational...
java util Part 1 The Collections Framework
The Linked List Class The Linked List class extends Abstract Sequential List and implements the List interface. It provides a linked-list data structure. It has the two constructors, shown here': Linked List( ) , Linked List(Collection c) The first constructor builds...
