多次元の文字列配列を使用して、州と首都を一致させるためにユーザーをクイズするJavaプログラムを作成する

Question

import java.util.Scanner; 

public class StateCapital { 

    public static void main(String[] args) { 
     Scanner scnr = new Scanner(System.in); 

/* 
     FIXME: Delcare... 
      1. A string variable to store the user input 
      2. An integer variable to count the total correct answers 
*/ 


     // FIXME: Initialize a multi-dimensional string array 


     // FIXME: Complete the array to store the state and capital names 
     stateCapital[0][0] = "Alabama";    stateCapital[0][1] = "Montgomery"; 
     stateCapital[1][0] = "Alaska";    stateCapital[1][1] = "Juneau"; 
     stateCapital[2][0] = "Arizona";    stateCapital[2][1] = "Phoenix"; 
     stateCapital[3][0] = "Arkansas";   stateCapital[3][1] = "Little Rock"; 
     stateCapital[4][0] = "California";   stateCapital[4][1] = "Sacramento"; 
     stateCapital[5][0] = "Colorado";    stateCapital[5][1] = "Denver"; 
     stateCapital[6][0] = "Connecticut";   stateCapital[6][1] = "Hartford"; 
     stateCapital[7][0] = "Delaware";    stateCapital[7][1] = "Dover"; 
     stateCapital[8][0] = "Florida";    stateCapital[8][1] = "Tallahassee"; 
     stateCapital[9][0] = "Georgia";    stateCapital[9][1] = "Atlanta"; 

     stateCapital[20][0] = "Massachusetts";  stateCapital[20][1] = "Boston"; 
     stateCapital[21][0] = "Michigan";   stateCapital[21][1] = "Lansing"; 
     stateCapital[22][0] = "Minnesota";   stateCapital[22][1] = "St. Paul"; 
     stateCapital[23][0] = "Mississippi";  stateCapital[23][1] = "Jackson"; 
     stateCapital[24][0] = "Missouri";   stateCapital[24][1] = "Jefferson City"; 
     stateCapital[25][0] = "Montana";    stateCapital[25][1] = "Helena"; 
     stateCapital[26][0] = "Nebraska";   stateCapital[26][1] = "Lincoln"; 
     stateCapital[27][0] = "Nevada";    stateCapital[27][1] = "Carson City"; 
     stateCapital[28][0] = "New Hampshire";  stateCapital[28][1] = "Concord"; 
     stateCapital[29][0] = "New Jersey";   stateCapital[29][1] = "Trenton"; 

     stateCapital[40][0] = "South Dakota";  stateCapital[40][1] = "Pierre"; 
     stateCapital[41][0] = "Tennessee";   stateCapital[41][1] = "Nashville"; 
     stateCapital[42][0] = "Texas";    stateCapital[42][1] = "Austin"; 
     stateCapital[43][0] = "Utah";     stateCapital[43][1] = "Salt Lake City"; 
     stateCapital[44][0] = "Vermont";    stateCapital[44][1] = "Montpelier"; 
     stateCapital[45][0] = "Virginia";   stateCapital[45][1] = "Richmond"; 
     stateCapital[46][0] = "Washington";   stateCapital[46][1] = "Olympia"; 
     stateCapital[47][0] = "West Virginia";  stateCapital[47][1] = "Charleston"; 
     stateCapital[48][0] = "Wisconsin";   stateCapital[48][1] = "Madison"; 
     stateCapital[49][0] = "Wyoming";    stateCapital[49][1] = "Cheyenne"; 

     // FIXME: Ask the user to guess the capitals for all 50 states, display one state at a time; Use for loop 
     System.out.println("What is the capital for Delaware?"); 


     // FIXME: Modify the statement below to print total correct count 
     System.out.println("Total correct count: 35"); 


    } 

} 

私はこのプログラムをどのように使いこなすかを理解することができます。このプログラムを解決する方法を正確に知ってください

Answer 1

0から49までの乱数を選んでください。これにより、あなたはユーザーに資本を推測させる状態を選択できます。今

// this should give you a number between 0 and 49. 
// [Someone, please correct me if the bounds are wrong.] 
int randomRow = (int) (Math.random() * (49+1)); 

、0番目のインデックス、すなわち、stateCapital[randomRow][0]は状態の名前で、1番目のインデックスが首都です。ユーザーに質問をし、Scannerを使用して入力を読み込んでください。入力された答えを1番目のインデックスと比較します。

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