java - 我希望程序使用多个字符串读取用户输入

Question

我希望读取用户输入，然后 if 语句将从那里接管但它没有读取字符串。我将在不同区域添加更多站点。帮助!

import java.util.*;

public class centralline {

    public static void main(String[] args) {

        Scanner input = new Scanner(System.in);

        System.out.println("What station do you need to know the zone of? ");
        String answer = input.nextLine();
        String zone1 = "Liverpool Street" + "Oxford Street" + "Bank";
        String zone2 = "Mile End" + "Stratford";

        {
            if (zone1.equals(answer)) {
                System.out.println(answer + " is in Zone 1");

            } else if (zone2.equals(answer)) {
                System.out.println(answer + " is in Zone 2");
            } else
                System.out
                        .println("is"
                                + answer
                                + "a Loodon underground station? Maybe check your spelling. ");
        }
    }
}

Answer 1

要么将您的区域存储在字符串数组中，然后检查答案是否在数组中，要么使用.contains( ) 不是 .equals()。

if (zone1.contains(answer))

...

 } else if (zone2.contains(answer)) {

或者:

String[] zone1 = new String[3];
zone1[0] = "Liverpool Street";
zone1[1] = "Oxford Street";
zone1[2] = "Bank";

for(String a : zone1)
{
    if (a.equals(answer))
    {
         System.out.println( answer+" is in Zone 1");
         break;
    }
}

只需对其他区域重复这些步骤...创建一个 boolean 变量来跟踪是否在其中一个 区域 中找到了 answer >.