小编Rau*_*ria的帖子

我找不到代码使用大小写字母的方法,我只能找到一种方法让它运行一个或另一个...尝试了一段时间仍然没有管理,漂亮你看到的新人!提前致谢!

import java.util.*;
public class LectureTimes {

    public static void main(String[] args) {
        // TODO Auto-generated method stub
        Scanner sc = new Scanner(System. in );
        char letter;
        System.out.println("Enter your class and" + " you will recieve your lecture time");

        do {
            letter = sc.next().charAt(0);
        } while (letter < 'a' || letter > 'd');

        if (letter == 'A') {
            System.out.println("Your class is at 10:00");
        } else {
            if (letter == 'a') {
                System.out.println("Your class is at 10:00");
            } else {
                if …