## Monday, 29 August 2016

### Chapter 8 Exercise 37, Introduction to Java Programming, Tenth Edition Y. Daniel LiangY.

8.37 (Guess the capitals) Write a program that repeatedly prompts the user to enter
a capital for a state. Upon receiving the user input, the program reports whether
the answer is correct. Assume that 50 states and their capitals are stored in a two-
dimensional array, as shown in Figure 8.10. The program prompts the user to
answer all states’ capitals and displays the total correct count. The user’s answer
is not case-sensitive.
Alabama
Arizona
...
...
Montgomery
Juneau
Phoenix
...
...
F IGURE 8.10 A two-dimensional array stores states and their capitals.
Here is a sample run:
What is the
The correct
What is the
What is the
...
The correct
capital of Alabama? Montogomery
is correct
capital of Arizona? ...
count is 35

import java.util.Scanner;

public class Exercise_37 {

public static void main(String[] args) {

Scanner input = new Scanner(System.in);
int correctCount = 0;
for (int i = 0; i < stateCapitals.length; i++) {
System.out.print("What is the capital of " + stateCapitals[i][0]+"? ");
String s = input.nextLine();
if (s.equalsIgnoreCase(stateCapitals[i][1])) {
correctCount++;
} else {
System.out.println("WRONG - The correct answer is " + stateCapitals[i][1]);
}
}
System.out.println("The correct count is " + correctCount);
}

private static String[][] stateCapitals = {
{"Alabama", "Montgomery"},
{"Arizona", "Phoenix"},
{"Arkansas", "Little Rock"},
{"California", "Sacramento"},
{"Connecticut", "Hartford"},
{"Delaware", "Dover"},
{"Florida", "Tallahassee"},
{"Georgia", "Atlanta"},
{"Hawaii", "Honolulu"},
{"Idaho", "Boise"},
{"Illinois", "Springfield"},
{"Maryland", "Annapolis"},
{"Minnesota", "Saint Paul"},
{"Iowa", "Des Moines"},
{"Maine", "Augusta"},
{"Kentucky", "Frankfort"},
{"Indiana", "Indianapolis"},
{"Kansas", "Topeka"},
{"Louisiana", "Baton Rouge"},
{"Oregon", "Salem"},
{"Oklahoma", "Oklahoma City"},
{"Ohio", "Columbus"},
{"North Dakota", "Bismark"},
{"New York", "Albany"},
{"New Mexico", "Santa Fe"},
{"New Jersey", "Trenton"},
{"New Hampshire", "Concord"},
{"Montana", "Helena"},
{"North Carolina", "Raleigh"},
{"Missouri", "Jefferson City"},
{"Mississippi", "Jackson"},
{"Massachusetts", "Boston"},
{"Michigan", "Lansing"},
{"Pennsylvania", "Harrisburg"},
{"Rhode Island", "Providence"},
{"South Carolina", "Columbia"},
{"South Dakota", "Pierre"},
{"Tennessee", "Nashville"},
{"Texas", "Austin"},
{"Utah", "Salt Lake City"},
{"Vermont", "Montpelier"},
{"Virginia", "Richmond"},
{"Washington", "Olympia"},
{"West Virginia", "Charleston"},