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我試圖創建一個隨機數生成程序，跟蹤玩家的勝，負，勝率，總獎金。該方案的邏輯是玩家每次獲得3次機會，並且計算機產生一個隨機數字，玩家需要猜測或者應該匹配。程序忽略「如果其他」，並打印一切
我試着用if if & else語句告訴用戶他是否需要在3個允許的猜測中猜出更高的數字或更低的數字。發生的事情是它完全忽略了條件並一次打印所有三次機會並結束遊戲。
在此的任何輸入將高度讚賞。
遊戲類：
import java.util.Scanner;
public class Game {
Player player;
LuckyNumberGenerator lng;
public Game() {
player = new Player();
lng = new LuckyNumberGenerator();
}
public void eventLoop() {
Scanner scanner = new Scanner(System.in);
int choice = 0;
boolean exit = false;
while (!exit) {
System.out.println("Welcome to the Guessing Game");
System.out.println("==============================");
System.out.println("(1) Set Up New Player");
System.out.println("(2) Play One Round");
System.out.println("(3) Player Win Statistics");
System.out.println("(4) Display Game Help");
System.out.println("(5) Exit Game");
System.out.println("Choose an option: ");
try {
choice = Integer.parseInt(scanner.nextLine());
if (choice < 1 || choice > 5) {
System.err.println("Error : Choose an option between 1 and 5");
choice = 0;
}
} catch (NumberFormatException e) {
System.err.println("Error : Choose an option between 1 and 5");
choice = 0;
}
switch (choice) {
case 1:
createNewPlayer(scanner);
break;
case 2:
guessNumber(scanner);
break;
case 3:
printStatistics();
break;
case 4:
printHelp();
break;
case 5:
exit = true;
}
}
scanner.close();
}
public void printHelp() {
System.out.println(" ");
}
public void printStatistics() {
try {
if (player.getName() == null || player.getName().trim().length() < 1) {
System.out.println("Player has not been set up!");
} else {
System.out.println("Player statistics are: ");
System.out.println("Name: " + player.getName());
System.out.println("Wins: " + player.getGamesWon());
System.out.println("Losses: " + player.getGamesLost());
System.out.println("Amount won so far: " + player.getTotalWinnings());
System.out.println("Winnings percentage : "
+ (((player.getGamesWon())/(player.getGamesWon() + player.getGamesLost())) * 100));
}
} catch (ArithmeticException ae) {
System.out.println("wins and loss both are 0: divide by zero exception");
}
}
public void guessNumber(Scanner scanner) {
int compGuess = lng.generate();
int userGuess = 0;
int numAttempts = 0;
int cnum = lng.generateConsole();
do {
try {
System.out.println("Guess a number between 1-100: ");
userGuess = Integer.parseInt(scanner.nextLine());
if (userGuess < 1 || userGuess > 100) {
System.err.println("Error : your Guess must be between 1-100");
}
} catch (Exception e) {
System.err.println("Error : your Guess must be between 1-100");
}
} while (userGuess < 1 && userGuess > 100);
do {
if (userGuess > compGuess) {
System.out.println("Your Guess is: " + userGuess + "and the random number: " + compGuess);
System.out.println("Sorry, you need to go LOWER :");
} else if (userGuess < compGuess) {
System.out.println("Your Guess is: " + userGuess + "and the random number: " + compGuess);
System.out.println("Sorry, you need to go HIGHER :");
}
numAttempts++;
if (userGuess == compGuess) {
System.out.println("Lucky Number was : " + compGuess + "your guess was : " + userGuess);
System.out.println("Congratulations you won " + 10 + "$");
player.setGamesWon(1);
player.setTotalWinnings(10);
}
if (userGuess != compGuess && (userGuess <= (compGuess + 5)) && (userGuess >= (compGuess - 5))) {
System.out.println("Lucky Number was : " + compGuess + "your FINAL guess was : " + userGuess);
System.out.println("Congratulations you won " + cnum + "$");
player.setTotalWinnings(5);
} else if (userGuess != compGuess) {
System.out.println("Lucky Number was : " + compGuess + "your guess was : " + userGuess);
System.out.println("Sorry better Luck Next time");
player.setGamesLost(1);
player.setTotalWinnings(-1);
}
} while (userGuess != compGuess && numAttempts < 3);
}
public void createNewPlayer(Scanner scanner) {
String name = null;
do {
try {
System.out.println("Enter the name of the player: ");
name = scanner.nextLine();
if (name.isEmpty()) {
System.err.println("Name cannot be empty");
}
} catch (Exception e) {}
} while (name.isEmpty());
this.player = new Player(name);
}
public static void main() {
Game game = new Game();
game.eventLoop();
}
}
我非常懷疑它忽略了'else if'，這是一個邏輯上的缺陷;）同樣格式化你的代碼會使它更容易閱讀。 – SomeJavaGuy
感謝您的輸入凱文。這確實是一個邏輯缺陷，但並沒有完全弄清楚我出錯的地方。我是Java新手，這是我的第一個程序。我嘗試了一些可能性，但似乎沒有工作。任何想法都會很棒。抱歉格式不正確。 –