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ordered collection
A collection where each element in the collection has a well-defined place
OutputStream
The base class of a hierarchy of classes including FileOutputStream
pathname
A textual representation of how to find a file or folder on a particular operating system.
persistence
The ability of objects or other data to continue in existence after a program has stopped executing.
persistent
Stored in a non-volatile form
primary sort
An initial sorting according to a particular key.
raw collection
A collection for which an element type is not specified. Java collections prior to Java 5 are raw collections.
Reader
The base class of a group of classes including FileReader and BufferedReader
relative pathname
A path to a file beginning from the current working directory
Scanner
A class used to read string tokens from a source. In M250 the source may be a FileReader or a String.
secondary sort
A sorting that can be applied after applying a primary sort in order to sort any elements that are considered equal by the primary sort.
set
A collection in which each item may appear only once – no duplicates are allowed.
sorted collection
A collection that always keeps its elements in their natural ordering
stable sort
A sort that does not reorder equal elements.
stream
An object used to connect a data source to a data sink
string interning
A process used by Java to create a pool of strings that can be reused when possible
StringBuilder
A class whose instances represent a mutable sequence of characters.
sub-array
A set of contiguous components within the same array.
subinterface
A subinterface is an interface that extends another interface (called its superinterface)
sublist
A list together with any two positions in the list may be seen as defining a new list containing just those elements between the two positions
superinterface
A superinterface is an interface that is extended by some other interface(s).
token
An item of data that can be written to or retrieved from a file. Delimiters are used to separate tokens in a file.
tree
A collection structure typified by branching connections between elements
union
Union is a mathematical operation on two or more sets that results in a set containing all of the elements of all of the sets. The term is used to refer both to the result and to the operation.
unwrapping
The process of converting a wrapped value (one contained in a wrapper class) to its primitive value equivalent.
wrapper class
Every primitive type has a corresponding wrapper class whose purpose is to hold a primitive value in a place where a primitive value is intuitively what is needed
wrapping
The process of converting a primitive value to an object equivalent
Writer
The base class of a group of classes including FileWriter and BufferedWriter
zero-based indexing
An indexing system in which the first index is 0.
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