Java Reference
In-Depth Information
7
A
RRAYS
Objectives
To describe why arrays are necessary in programming (§7.1).
■
To declare array reference variables and create arrays (§§7.2.1-7.2.2).
■
To obtain array size using
arrayRefVar.length
and know default
values in an array (§7.2.3).
■
To access array elements using indexes (§7.2.4).
■
To declare, create, and initialize an array using an array initializer (§7.2.5).
■
To program common array operations (displaying arrays, summing
all elements, finding the minimum and maximum elements, random
shuffling, and shifting elements) (§7.2.6).
■
To simplify programming using the for each loops (§7.2.7).
■
To apply arrays in application development (
AnalyzeNumbers
,
DeckOfCards
) (§§7.3-7.4).
■
To copy contents from one array to another (§7.5).
■
To develop and invoke methods with array arguments and return values
(§§7.6-7.8).
■
To define a method with a variable-length argument list (§7.9).
■
To search elements using the linear (§7.10.1) or binary (§7.10.2)
search algorithm.
■
To sort an array using the selection sort approach (§7.11).
■
To use the methods in the
java.util.Arrays
class (§7.12).
■
To pass arguments to the main method from the command line (§7.13).
■
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