所以，在这个程序中，当while循环结束时，它会正确显示“You Win！”并且它确实执行询问用户是否想要查看信用的代码。但是，在问题和程序结束后不接受扫描仪/输入而不接受任何输入。
Scanner scan = new Scanner(System.in);
System.out.println("Would you like to play a game called Threes? Y/N");
String answer = scan.nextLine(); //Simple yes or no
if (answer.contains("Y") || (answer.contains("y"))) {
System.out.println("OK, want to know how it works? Y/N");
String answer2 = scan.nextLine();
if (answer2.contains("n") || (answer2.contains("N"))) {
System.out.println("OK, Enter a single number.");
int mistake = 0; //Used as a counter for number of division mistakes made
int numstart = scan.nextInt(); //First number input
int current = numstart; //Current number displayed - starts as the first number
System.out.println("Enter 1 or -1 if you're adding or subtracting, and 0 to divide.");
System.out.println(numstart); //Displays first number input
int input = scan.nextInt(); //First function performed by user
while (current != 1) { //The game will run until the number '1' is reached
if (input == 1) { //If '1' is input, add one to the number, and display new number
current++;
System.out.println(current);
input = scan.nextInt();
}
if (input == -1) { //If '-1' is input, subtract one from the number, and display new number
current--;
System.out.println(current);
input = scan.nextInt();
}
if (input == 0) { //If '0' is input, try to divide
if (current % 3 != 0 && current != 1) { //If you can't divide by three, try again
System.out.println("Try again.");
mistake++;
input = scan.nextInt();
}
if (current % 3 == 0) { //If you can divide, do it and display new number
current = current / 3;
System.out.println(current);
input = scan.nextInt();
}
}
if (input == 69 || input == 666) //Cheat code! If you input 69 or 666, you automatically win
break;
if (((input > 1) && (input != 69) && (input != 666)) || input < -1) { //If input is not valid, try again and display error
System.out.println("Error - wrong input.");
input = scan.nextInt();
}
}
System.out.println("You Win! Mistakes: " + mistake + "\n"); //Will display a win condition, and amount of division errors
System.out.println("Thank you for playing Threes \n - Chris Burbach");
}
System.out.println("Credits? Y/N");
String credits = scan.nextLine();
if(credits.contains("Y")||credits.contains("y"))
{
System.out.println("\n***********************************************************************");
System.out.println("*Threes: a game of dividing by three - inspired by my boredom in class*");
System.out.println("***********************************************************************");
}
else
System.out.println("OK, have a nice day.");
if (answer2.contains("Y") || answer2.contains("y")) {
System.out.println("OK, you first will enter a number, and then either enter '1' or '-1' to add or subtract 1 respectively. " +
"\nOr you can enter '0' to divide by three. The goal is to get your number down to '1' in as little steps as possible.");
System.out.println(" \nEnter a single number.");
int mistake = 0; //Used as a counter for number of division mistakes made
int numstart = scan.nextInt(); //First number input
int current = numstart; //Current number displayed starts as the first number
System.out.println("Enter 1 or -1 if you're adding or subtracting, and 0 to divide.");
System.out.println(numstart); //Displays first number input
int input = scan.nextInt(); //First function performed by user
while (current != 1) { //The game will run until the number '1' is reached
if (input == 1) { //If '1' is input, add one to the number, and display new number
current++;
System.out.println(current);
input = scan.nextInt();
}
if (input == -1) { //If '-1' is input, subtract one from the number, and display new number
current--;
System.out.println(current);
input = scan.nextInt();
}
if (input == 0) { //If '0' is input, try to divide
if (current % 3 != 0 && current != 1) { //If you can't divide by three, try again
System.out.println("Try again.");
mistake++;
input = scan.nextInt();
}
if (current % 3 == 0) { //If you can divide, do it and display new number
current = current / 3;
System.out.println(current);
input = scan.nextInt();
}
}
if (input == 69 || input == 666) //Cheat code! If you input 69 or 666, you automatically win
break;
if (((input > 1) && (input != 69) && (input != 666)) || input < -1) { //If input is not valid, try again and display error
System.out.println("Error - wrong input.");
input = scan.nextInt();
}
}
System.out.println("You Win! Mistakes: " + mistake + "\n"); //Will display a win condition, and amount of division errors
System.out.println("Thank you for playing Threes \n - Chris Burbach");
System.out.println("\n***********************************************************************");
System.out.println("*Threes: a game of dividing by three - inspired by my boredom in class*");
System.out.println("***********************************************************************");
}
}
if (answer.contains("N") || answer.contains("n"))
System.out.println("Okay, have a nice day.");
答案 0 :(得分：1)
对不起任何困惑，我想通了。在“You Win！”的每个实例之后，在其嵌套的if语句之外，我需要添加scan.nextLine();，因为它返回换行符并由于空输入而终止程序。