我一两周前才开始学习 Java，我想在终端内创建一个愚蠢的小赌博软件；然而，即使我希望他们能够赌博多次，玩家也只能赌博一次。
代码：
import java.util.Random;
import java.util.Scanner;
public class Gambler {
public static void main(String[] args) {
Random random = new Random();
Scanner scanner = new Scanner(System.in);
int balance = 100;
System.out.println();
System.out.println("--> Current Balance: $" + balance + " <--");
System.out.println();
System.out.println("Would you like to enter the Java Gambler simulator?");
System.out.println();
System.out.println("[Yes] [No]");
System.out.println();
String yesOrNo;
yesOrNo = scanner.nextLine();
if (yesOrNo.equalsIgnoreCase("Yes")) {
System.out.println();
System.out.println("[!] Welcome to the Java Gambler! [!]");
System.out.println();
System.out.println("The only Java gambling software in all of Java County!");
System.out.println();
System.out.println("If the chosen number is {1}, the player automatically wins $20.");
System.out.println("If the chosen number is {2}, the player automatically wins $10.");
System.out.println("If the chosen number is {3}, the player automatically wins $5.");
System.out.println("All other numbers are an automatic loss.");
System.out.println();
System.out.println("Continue?");
System.out.println();
System.out.println("[Yes] [No]");
System.out.println();
String yesOrNo2;
yesOrNo2 = scanner.nextLine();
if (yesOrNo2.equalsIgnoreCase("Yes")) {
System.out.println();
System.out.println("Gambling Options:");
System.out.println();
System.out.println("[A] $1 Bet (1/20 $20, 1/20 $10, 1/20 $5)");
System.out.println("[B] $5 Bet (1/10 $20, 1/10 $10, 1/10 $5)");
System.out.println("[C] $10 Bet (1/5 $20, 1/5 $10, 1/5 $5)");
System.out.println();
System.out.println("Gambling Selection: ");
System.out.println();
String continueGambling = "Yes";
while (continueGambling.equalsIgnoreCase("Yes")) {
String gamblingSelection;
gamblingSelection = scanner.nextLine();
String a = "A";
String b = "B";
String c = "C";
if (gamblingSelection.equalsIgnoreCase(a)) {
balance = balance - 1;
int aSelection = random.nextInt(20) + 1;
System.out.println();
System.out.println("And the number is... " + aSelection);
System.out.println();
switch (aSelection) {
case 1:
System.out.println("Congrats, you have won $20!");
balance = balance + 20;
System.out.println("--> Your new balance: $" + balance + " <--");
System.out.println();
System.out.println("Continue?");
System.out.println();
System.out.println("[Yes] [No]");
System.out.println();
break;
case 2:
System.out.println("Congrats, you have won $10!");
balance = balance + 10;
System.out.println("--> Your new balance: $" + balance + " <--");
System.out.println();
System.out.println("Continue?");
System.out.println();
System.out.println("[Yes] [No]");
System.out.println();
break;
case 3:
System.out.println("Congrats, you have won $5!");
balance = balance + 5;
System.out.println("--> Your new balance: $" + balance + " <--");
System.out.println();
System.out.println("Continue?");
System.out.println();
System.out.println("[Yes] [No]");
System.out.println();
break;
default:
System.out.println("Sorry, no luck this time...");
System.out.println("--> Your new balance: $" + balance + " <--");
System.out.println();
System.out.println("Continue?");
System.out.println();
System.out.println("[Yes] [No]");
System.out.println();
break;
}
}
else if (gamblingSelection.equalsIgnoreCase(b)) {
balance = balance - 5;
int bSelection = random.nextInt(10) + 1;
System.out.println();
System.out.println("And the number is... " + bSelection);
System.out.println();
switch (bSelection) {
case 1:
System.out.println("Congrats, you have won $20!");
balance = balance + 20;
System.out.println("--> Your new balance: $" + balance + " <--");
System.out.println();
System.out.println("Continue?");
System.out.println();
System.out.println("[Yes] [No]");
System.out.println();
break;
case 2:
System.out.println("Congrats, you have won $10!");
balance = balance + 10;
System.out.println("--> Your new balance: $" + balance + " <--");
System.out.println();
System.out.println("Continue?");
System.out.println();
System.out.println("[Yes] [No]");
System.out.println();
break;
case 3:
System.out.println("You won $5! Its a free spin, I guess...");
balance = balance + 5;
System.out.println("--> Your new balance: $" + balance + " <--");
System.out.println();
System.out.println("Continue?");
System.out.println();
System.out.println("[Yes] [No]");
System.out.println();
break;
default:
System.out.println("Sorry, no luck this time...");
System.out.println("--> Your new balance: $" + balance + " <--");
System.out.println();
System.out.println("Continue?");
System.out.println();
System.out.println("[Yes] [No]");
System.out.println();
break;
}
}
else if (gamblingSelection.equalsIgnoreCase(c)) {
balance = balance - 10;
int cSelection = random.nextInt(5) + 1;
System.out.println();
System.out.println("And the number is... " + cSelection);
System.out.println();
switch (cSelection) {
case 1:
System.out.println("Congrats, you have won $20!");
balance = balance + 20;
System.out.println("--> Your new balance: $" + balance + " <--");
System.out.println();
System.out.println("Continue?");
System.out.println();
System.out.println("[Yes] [No]");
System.out.println();
break;
case 2:
System.out.println("You won $10! Its a free spin, I guess...");
balance = balance + 10;
System.out.println("--> Your new balance: $" + balance + " <--");
System.out.println();
System.out.println("Continue?");
System.out.println();
System.out.println("[Yes] [No]");
System.out.println();
break;
case 3:
System.out.println("You won $5! At least its somethin...");
balance = balance + 5;
System.out.println("--> Your new balance: $" + balance + " <--");
System.out.println();
System.out.println("Continue?");
System.out.println();
System.out.println("[Yes] [No]");
System.out.println();
break;
default:
System.out.println("Sorry, no luck this time...");
System.out.println("--> Your new balance: $" + balance + " <--");
System.out.println();
System.out.println("Continue?");
System.out.println();
System.out.println("[Yes] [No]");
System.out.println();
break;
}
}
}
continueGambling = scanner.nextLine();
}
else {
String wrongValue = "Invalid response. Please try again.";
System.out.println(wrongValue);
}
}
else if (yesOrNo.equalsIgnoreCase("No")) {
System.out.println("You sure are missing out...");
}
else {
System.out.println("Invalid response. Please try again.");
}
scanner.close();
}
}
这里是 GitHub 上完整代码的链接：https://github.com/OkBrock/Gambler
我做了一个循环并制作了一个扫描仪，但每次我输入“是”时什么也没有发生。
总结：
我需要玩家有能力以单一的平衡进行多次赌博。
我用扫描仪做了一个循环，但什么也没发生。检查代码看看。
我为“是”做了这项工作，但是您确实提到您刚刚开始编码，所以我希望您使用调试器来找出当我输入“否”或其他内容时它所面临的问题。 do-while 循环是一个即使底部的测试用例不正确也会肯定运行 1 次的循环。第一次运行后，只有底部的条件为真时才会运行。祝你好运！
import java.util.Random;
import java.util.Scanner;
public class Gambler {
public static void main(String[] args) {
Random random = new Random();
Scanner scanner = new Scanner(System.in);
int balance = 100;
System.out.println();
System.out.println("--> Current Balance: $" + balance + " <--");
System.out.println();
System.out.println("Would you like to enter the Java Gambler simulator?");
System.out.println();
System.out.println("[Yes] [No]");
System.out.println();
String yesOrNo;
do {
yesOrNo = scanner.nextLine();
System.out.println();
System.out.println("[!] Welcome to the Java Gambler! [!]");
System.out.println();
System.out.println("The only Java gambling software in all of Java County!");
System.out.println();
System.out.println("If the chosen number is {1}, the player automatically wins $20.");
System.out.println("If the chosen number is {2}, the player automatically wins $10.");
System.out.println("If the chosen number is {3}, the player automatically wins $5.");
System.out.println("All other numbers are an automatic loss.");
System.out.println();
System.out.println("Continue?");
System.out.println();
System.out.println("[Yes] [No]");
System.out.println();
String yesOrNo2;
yesOrNo2 = scanner.nextLine();
if (yesOrNo2.equalsIgnoreCase("Yes")) {
System.out.println();
System.out.println("Gambling Options:");
System.out.println();
System.out.println("[A] $1 Bet (1/20 $20, 1/20 $10, 1/20 $5)");
System.out.println("[B] $5 Bet (1/10 $20, 1/10 $10, 1/10 $5)");
System.out.println("[C] $10 Bet (1/5 $20, 1/5 $10, 1/5 $5)");
System.out.println();
System.out.println("Gambling Selection: ");
System.out.println();
String continueGambling;
do {
String gamblingSelection = scanner.nextLine();
String a = "A";
String b = "B";
String c = "C";
if (gamblingSelection.equalsIgnoreCase(a)) {
balance -= 1;
int aSelection = random.nextInt(20) + 1;
System.out.println();
System.out.println("And the number is... " + aSelection);
System.out.println();
switch (aSelection) {
case 1:
System.out.println("Congrats, you have won $20!");
balance += 20;
break;
case 2:
System.out.println("Congrats, you have won $10!");
balance += 10;
break;
case 3:
System.out.println("Congrats, you have won $5!");
balance += 5;
break;
default:
System.out.println("Sorry, no luck this time...");
break;
}
} else if (gamblingSelection.equalsIgnoreCase(b)) {
balance -= 5;
int bSelection = random.nextInt(10) + 1;
System.out.println();
System.out.println("And the number is... " + bSelection);
System.out.println();
switch (bSelection) {
case 1:
System.out.println("Congrats, you have won $20!");
balance += 20;
break;
case 2:
System.out.println("Congrats, you have won $10!");
balance += 10;
break;
case 3:
System.out.println("You won $5! It's a free spin, I guess...");
balance += 5;
break;
default:
System.out.println("Sorry, no luck this time...");
break;
}
} else if (gamblingSelection.equalsIgnoreCase(c)) {
balance -= 10;
int cSelection = random.nextInt(5) + 1;
System.out.println();
System.out.println("And the number is... " + cSelection);
System.out.println();
switch (cSelection) {
case 1:
System.out.println("Congrats, you have won $20!");
balance += 20;
break;
case 2:
System.out.println("You won $10! It's a free spin, I guess...");
balance += 10;
break;
case 3:
System.out.println("You won $5! At least it's something...");
balance += 5;
break;
default:
System.out.println("Sorry, no luck this time...");
break;
}
}
System.out.println("--> Your new balance: $" + balance + " <--");
System.out.println();
System.out.println("Continue?");
System.out.println("[Yes] [No]");
System.out.println();
continueGambling = scanner.nextLine();
} while (continueGambling.equalsIgnoreCase("Yes"));
} else if (yesOrNo.equalsIgnoreCase("No")) {
System.out.println("You sure are missing out...");
} else {
System.out.println("Invalid response. Please try again.");
}
} while (yesOrNo.equalsIgnoreCase("Yes"));
scanner.close();
}
}