问Java:为什么我的While语句不适用于我的案例2？
EN

Stack Overflow用户

提问于 2015-04-25 01:32:27

回答 1查看 62关注 0票数 0

我试图创建一个简单的程序，输出一首歌的歌词时，指定的数字是输入。问题是我的第二个案例不会输出，而是只输出第一个案例。当我试图输出第二种情况时，它仍然输出第一种情况。不管我是否做了两次while语句，这种情况仍然会发生。有人能帮我修好密码吗？

下面是：

import java.util.Scanner;
public class Lyrics {
public static void main (String args[]){
        Scanner input = new Scanner (System.in);
        int one, two, uone, utwo;
        one = 1;
        two = 2;
        System.out.println("Welcome to the Lyrics Finder!");
        System.out.println("Press the number beside the song to see the lyrics!");
        System.out.println("1) Thank For The Memories - Fall Out Boy");
        System.out.println("2) Take Me To Church - Hozier");
        uone = input.nextInt();
        utwo = input.nextInt();
        switch (one){
        case 1:
            //code goes here for option 1
            System.out.println("");
            System.out.println("Thank For The Memories - Fall Out Boy Lyrics");
            System.out.println("         ==          ");
            System.out.println("I'm gonna make it bend and break");
            System.out.println("Say a prayer but let the good times roll");
            System.out.println("In case God doesn't show");
            System.out.println("(Let the good times roll, let the good times roll)");
            System.out.println("And I want these words to make things right");
            System.out.println("But it's the wrongs that make the words come to life");
            System.out.println("Who does he think he is?");
            System.out.println("Who does he think he is?");
            System.out.println("Better put your fingers back to the keys");
            //continue song here
            break;
        case 2:
            //retype all code her for it to reset
            System.out.println("");
            System.out.println("Take Me To Church - Hozier");
            System.out.println("          ==             ");
            System.out.println("My lover's got humour, She's the giggle at a funeral");
            System.out.println("Knows everybody's disapproval, I should've worshipped her sooner");
            System.out.println("If the heavens ever did speak, She's the last true mouthpiece");
            System.out.println("Every Sunday's getting more bleak, A fresh poison each week");
            System.out.println("We were born sick you heard them say it");
            System.out.println("My church offers no absolutes, She tells me Worship in the bedroom");
            break;
  }
        while (uone == one){
            System.out.println("");
            System.out.println("<-=LYRICS ABOVE=->");
            System.out.println("<-=OPTIONS=->");
            System.out.println("Press the number beside the song to see the lyrics!");
            System.out.println("1) Thank For The Memories - Fall Out Boy");
            System.out.println("2) Take Me To Church - Hozier");

            uone = input.nextInt();
            utwo = input.nextInt();
            switch (one){
            case 1:
                //code goes here for option 1
                System.out.println("");
                System.out.println("Thank For The Memories - Fall Out Boy Lyrics");
                System.out.println("         ==          ");
                System.out.println("I'm gonna make it bend and break");
                System.out.println("Say a prayer but let the good times roll");
                System.out.println("In case God doesn't show");
                System.out.println("(Let the good times roll, let the good times roll)");
                System.out.println("And I want these words to make things right");
                System.out.println("But it's the wrongs that make the words come to life");
                System.out.println("Who does he think he is?");
                System.out.println("Who does he think he is?");
                System.out.println("Better put your fingers back to the keys");
                //continue song here
                break;
            case 2:
                //retype all code her for it to reset
                System.out.println("");
                System.out.println("Take Me To Church - Hozier");
                System.out.println("          ==             ");
                System.out.println("My lover's got humour, She's the giggle at a funeral");
                System.out.println("Knows everybody's disapproval, I should've worshipped her sooner");
                System.out.println("If the heavens ever did speak, She's the last true mouthpiece");
                System.out.println("Every Sunday's getting more bleak, A fresh poison each week");
                System.out.println("We were born sick you heard them say it");
                System.out.println("My church offers no absolutes, She tells me Worship in the bedroom");
                break;
        }
 }
}
}

当用户输入第一个时，应该输出以下内容：

System.out.println("");
                System.out.println("Thank For The Memories - Fall Out Boy Lyrics");
                System.out.println("         ==          ");
                System.out.println("I'm gonna make it bend and break");
                System.out.println("Say a prayer but let the good times roll");
                System.out.println("In case God doesn't show");
                System.out.println("(Let the good times roll, let the good times roll)");
                System.out.println("And I want these words to make things right");
                System.out.println("But it's the wrongs that make the words come to life");
                System.out.println("Who does he think he is?");
                System.out.println("Who does he think he is?");
                System.out.println("Better put your fingers back to the keys");
                //continue song here
                break;
while (uone == one){
                System.out.println("");
                System.out.println("<-=LYRICS ABOVE=->");
                System.out.println("<-=OPTIONS=->");
                System.out.println("Press the number beside the song to see the lyrics!");
                System.out.println("1) Thank For The Memories - Fall Out Boy");
                System.out.println("2) Take Me To Church - Hozier");

当用户输入数字2时，应该输出：

System.out.println("");
                System.out.println("Take Me To Church - Hozier");
                System.out.println("          ==             ");
                System.out.println("My lover's got humour, She's the giggle at a funeral");
                System.out.println("Knows everybody's disapproval, I should've worshipped her sooner");
                System.out.println("If the heavens ever did speak, She's the last true mouthpiece");
                System.out.println("Every Sunday's getting more bleak, A fresh poison each week");
                System.out.println("We were born sick you heard them say it");
                System.out.println("My church offers no absolutes, She tells me Worship in the bedroom");
                break;
while (uone == one){
                System.out.println("");
                System.out.println("<-=LYRICS ABOVE=->");
                System.out.println("<-=OPTIONS=->");
                System.out.println("Press the number beside the song to see the lyrics!");
                System.out.println("1) Thank For The Memories - Fall Out Boy");
                System.out.println("2) Take Me To Church - Hozier");

请注意，我是非常新的编码，所以请尝试解释最好的，你可以。如果没有，我仍然可以理解，但无论如何，请简要解释一下您的解决方案。。

java

回答 1

Stack Overflow用户

回答已采纳

发布于 2015-04-25 01:48:21

变化

    uone = input.nextInt();
    utwo = input.nextInt();
    switch (one){

至

    int choice = input.nextInt();

    switch (choice)

票数 2

页面原文内容由Stack Overflow提供。腾讯云小微IT领域专用引擎提供翻译支持

原文链接：

https://stackoverflow.com/questions/29860002

复制

相似问题

问Java:为什么我的While语句不适用于我的案例2？
EN

回答 1

Stack Overflow用户

社区

活动

圈层

关于

腾讯云开发者

热门产品

热门推荐

更多推荐

问Java:为什么我的While语句不适用于我的案例2？EN

回答 1

Stack Overflow用户

社区

活动

圈层

关于

腾讯云开发者

热门产品

热门推荐

更多推荐

问Java:为什么我的While语句不适用于我的案例2？
EN