创建 do-while 循环以提示用户是否要输入另一个 ISBN

Question

因此，作为我的 class 的一个项目，我需要制作一个程序，让用户输入 ISBN 编号的前 n 位数字并以第十位数字作为响应。我一直在无休止地寻找可以让我的程序询问用户是否要再次运行程序然后在他们输入 'yes' 或 [= 时再次运行程序的东西14=]。我发现什么都没有用，通常它只是循环“你想输入另一个 ISBN 吗”而不实际让他们输入 ISBN。我的代码在下面，谢谢你们的帮助！

import java.util.Scanner;
public class ISBNCheckSum {

    public static void main(String[] args) 
    {
        Scanner keyboard = new Scanner(System. in );
        // limiter 
        int isbn10 = 9;
        // to take in response of user
        long userResponse;
        // accumulator 
        int ISBnNum = 1;
        //current count of ISBN
        long isbnCount = 0;
        // This is used to multiply the userresponse by 1,2,3... up to 9
        int multiplier = 1;

        while (ISBnNum <= isbn10) 
        {
            System.out.println("Please ISBN number  " + ISBnNum);
            //to enter the User response
            userResponse = keyboard.nextInt();
            //Multiply the user response by multiplier variable
            userResponse = userResponse * multiplier;
            //add to accumulator 
            ISBnNum = ISBnNum + 1;
            // put user into final answer
            isbnCount = isbnCount + userResponse;
            // increase multiplier
            multiplier = multiplier + 1;
        }

        long checkSum;
        checkSum = isbnCount % 11;
        System.out.println(checkSum);
    }
}
}

Answer 1

尝试这样的事情（我已经更改了 iSBnNum 变量名称）：

    boolean askAgain = true;
    while (askAgain) {
        iSBnNum = 1;
        while (iSBnNum <= isbn10) {
            System.out.println("Please ISBN number  " + iSBnNum);
            // to enter the User response
            userResponse = keyboard.nextInt();
            // Multiply the user response by multiplier variable
            userResponse = userResponse * multiplier;
            // add to accumulator
            iSBnNum = iSBnNum + 1;
            // put user into final answer
            isbnCount = isbnCount + userResponse;
            // increase multiplier
            multiplier = multiplier + 1;
        }

        System.out.println("Ask again (Y/N)?");
        String answer = keyboard.next();

        askAgain = answer.equalsIgnoreCase("Y");
    }

创建 do-while 循环以提示用户是否要输入另一个 ISBN

Creating do-while loop to prompt user if they want to enter another ISBN

java

while-loop

isbn

do-while