java - 我希望输入不区分大小写

例如，当用户键入“ September”，“ SEPTEMBER”，“ september”，“ SepTEMber”或任何其他内容时，只要字母正确，它将是有效的输入。编写此代码的更整洁的方法是什么（我使用“ ||”的部分。）？

import java.io.BufferedReader;
import java.io.InputStreamReader;

public class Compare {

    public static void main(String[] args) {
        String s1 = getInput("Enter a month ");
        if(s1.equals("February")) {
            System.out.println("It's time to go to the Disneyland !");
            String s2 = getInput("Enter another month: ");
            if(s2.equals("February")) {
                System.out.println("You already won a Disneyland ticket! Try       another month.");
                String s3 = getInput("Enter another month: ");
                  if(s3.equals("January") ||
                     s3.equals("March") ||
                     s3.equals("April") ||
                     s3.equals("July") ||
                     s3.equals("May") ||
                     s3.equals("September") ||
                     s3.equals("October") ||
                     s3.equals("November") ||
                     s3.equals("Aguest") ||
                     s3.equals("July") ||
                     s3.equals("December")) {
                     System.out.println("You will go to Paris");
                  }else {
                     String s4 = getInput("Leave your name and phone number. We will call you back. ");
                     System.out.println("Thanks for visiting! Goodbye !");
                   }
              }
         }
     }
    private static String getInput(String prompt) {
        BufferedReader stdin = new BufferedReader(
                new InputStreamReader(System.in));
        System.out.print(prompt);
        System.out.flush();

        try {
            return stdin.readLine();
        } catch (Exception e) {
            return "Error: " + e.getMessage();
          }

     }

}

最佳答案

您还可以考虑将所有月份都放入一个数组中，并进行简单的比较：

String[] months = {"january", "march", "april", ...};
if (Arrays.asList(months).contains(s3.toLowerCase())
         System.out.println("You will go to Paris");

您可以内联构造数组，节省一些糟糕的Java样板。