Write a program named ChatAWhile that stores the area codes and rates in parallel arrays and allows a user to enter an area code and the length of time for a call in minutes, and then display the total cost of the call.

import java. util. Scanner; public class Main { public static void main (String[] args) { int areaCode[] = {121, 122, 123, 124, 125}; double rates [] = {0.2, 0.3, 0.35, 0.15, 0.25}; Scanner input = new Scanner (System. in); System. out. print ("Enter area code: "); int a = input. nextInt (); System. out. print ("Enter calling time: "); int time = input. nextInt (); double cost = 0; for (int i=0; i < areaCode. length; i++) { if (areaCode[i] = = a) { cost = rates[i] * time; } } System. out. println ("Total cost of the call: $" + cost); } }

Explanation:

The solution code is written in Java.

Firstly create two parallel arrays for area code and calling rate (Line 7-8). Presume the rate is based on call per minute.

Next, user Scanner object to prompt user to input area code and calling time (Line 10 - 14).

Create a for loop to identify the index where the input area code can be found in the array and then calculate the cost by using the same index i to get the corresponding rate (Line 17 - 20).

Print the cost to console (Line 22).