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]”.