Java: An Introduction to Problem Solving and Programming (7th Edition)
7th Edition
ISBN: 9780133766264
Author: Walter Savitch
Publisher: PEARSON
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Chapter 7.3, Problem 19STQ
Program Plan Intro
Array: An array is a container which is used to hold a set of variables of the similar data type.
Creating an array:
- • User can create an array in the similar way that user creating an object of a class type with the help of “new” operation.
- • Syntax for creating an array is given below:
dataType[] array_name = new dataType[Length];
From the above syntax,
- ○ The “dataType” represents “int”, “double”, “char” and so on.
- ○ The “array_name” indicates name of array that is given by user.
- ○ The “Length” defines the number of elements that the array can store.
Example:
The example for creating an array is given below:
int[] arr = new int[4];
The above array declaration is used to store “4” integer values.
- • In the above example, the “dataType” is “int”, the “array_name” is “arr” and the “Length” is “4”.
- • Indices of array always begin with “0”.
- ○ For array “arr”, index are “arr[0]”, “arr[1]”, “arr[2]” and “arr[3]”.
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Chapter 7 Solutions
Java: An Introduction to Problem Solving and Programming (7th Edition)
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