COP 2510 Study Guide - Quiz Guide: Array Data Structure, Foreach Loop, Pariah Dog
26 Oct 2016
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An array of size n is indexed from zero to n-1. This array holds 10 values that are indexed from 0 to 9. In java, arrays are objects that must be instantiated. The name of the array (scores) is an abject reference variable. The scores array could be declared as: int [] scores = new int[10]; The type of variable scores is set to a new array object that can hold 10 integers. Java provides two ways to declare arrays: int [] grades; int grades []; The first is consistent with other types of declarations. Declared type is explicit if array brackets are associated with element type. Other example of array declarations int [] weights = new int [2000]; Double [] prices = new double [500]; Boolean [] flags; flags = new boolean [20]; To reference a particular value or element, use the array name followed by the position or index in brackets.
