CS Arrays

Collection (Data Structure)

ways of retaining, accessing and operating upon many values or items of data

Search

find an item of data within the collection

Sort

rearrange the items of data into a particular order

Array

a collection of data, all with the same data type, referenced by a single variable name. Complex data type

Elements

Individual values within an array

Allocation

a request to the JVM to find enough memory to hold your data

Array syntax

The data type that will be used by all elements

Square brackets [ ]

The name of the variable

Equals Sign 

new keyword

Name of the data type of the elements

The number of elements in the array, within square brackets [ ]

Semi Colon

Garbage collection

The memory for the first allocation is automatically reclaimed and the JVM can repurpose it later (When allocating a new array under the same declaration)

Scalar variables

single variables such as int, char, double

.length

gives the length of an array as an int

Permissions

granting the ability for your program to use those memory locations (most common read and write)

Linear search

Checking each index to see if it fits the requirements of what is being looked for

Parallel arrays

multiple arrays, where the values at a particular index are related

Element address

(index * size of data type) + array address

new keyword

finds unused memory that can be used for your array