
Explanation of Solution
Program:
File name: “PhoneNumbers.java”
//Import necessary header files
import javax.swing.*;
//Define a class named PhoneNumbers
class PhoneNumbers
{
//Define a main method
public static void main(String[] args)
{
/*Declare an array to store first names for 30 people*/
String[] names = new String[30];
//Assign names for 10 people
names[0] = "Gina"; names[1] = "Marcia";
names[2] = "Rita"; names[3] = "Jennifer";
names[4] = "Fred"; names[5] = "Neil";
names[6] = "Judy"; names[7] = "Arlene";
names[8] = "LaWanda"; names[9] = "Deepak";
/*Declare an array to store numbers for 30 people*/
String numbers[] = new String[30];
//Assign numbers for 10 people
numbers[0] = "(847) 341-0912";
numbers[1] = "(847) 341-2392";
numbers[2] = "(847) 354-0654";
numbers[3] = "(414) 234-0912";
numbers[4] = "(414) 435-6567";
numbers[5] = "(608) 123-0904";
numbers[6] = "(608) 435-0434";
numbers[7] = "(608) 123-0312";
numbers[8] = "(920) 787-9813";
numbers[9] = "(930) 412-0991";
//Declare the variables and initialize the value
String entryName, entryPhone;
int x;
boolean isFound = false;
int highest = 10;
//Prompt the user to enter a name
entryName = JOptionPane.showInputDialog(null,
"Enter name to look up. Type 'quit' to quit.");
/*While the user enters a name until the arrays are full
and until the user enters quit*/
while (highest < 30 && !entryName.equals("quit"))
{
//For loop to be executed until x exceeds highest
for(x = 0; x < highest; ++ x)
/*If the name is found in the list, display the
corresponding phone number*/
if(entryName...

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Chapter 8 Solutions
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