好的,如果你不喜欢我的缩进,现在道歉(我是初学者)..
我无法编译此代码。任务是编写两个用户定义的方法,一个(布尔值)确定字母是否为元音,另一个将用户输入的 int(例如:12345)更改为反向(54321)我很难过使用此代码。建议和提示将不胜感激。
更新:新代码:
import java.util.Scanner;
public class InClassModule8
{
public static void main(String[] args) {
Scanner keyboard = new Scanner(System.in);
System.out.println("Please enter a letter: ");
String letter = keyboard.nextLine();
System.out.println("Please enter an integer: ");
int digit = keyboard.nextInt();
System.out.println(isVowel(letter));
System.out.println("The reversed digits are: " + reverseDigit(digit));
}
}
private static boolean isVowel(String line)
{
line = (line != null) ? line.trim() : "";
if (line.length() == 1) {
switch (Character.toUpperCase(line.charAt(0)))
{
case 'A': case 'E': case 'I': case 'O': case 'U':
return true;
}
return false;
}
private static String reverseDigit(int val)
{
StringBuilder sb = new StringBuilder(String.valueOf(val));
return sb.reverse().toString();
}
现在的错误:
发现 6 个错误:文件:/Users/gcaruso/Documents/CISS 110/Module 3/Module 4/In_Class_Module_8.java [行:16] 错误:/Users/gcaruso/Documents/CISS 110/Module 3/Module 4/In_Class_Module_8。 java:16:类、接口或枚举预期文件:/Users/gcaruso/Documents/CISS 110/Module 3/Module 4/In_Class_Module_8.java [行:19] 错误:/Users/gcaruso/Documents/CISS 110/Module 3/Module 4/In_Class_Module_8.java:19:类、接口或枚举预期文件:/Users/gcaruso/Documents/CISS 110/Module 3/Module 4/In_Class_Module_8.java [行:24] 错误:/Users/gcaruso /Documents/CISS 110/Module 3/Module 4/In_Class_Module_8.java:24:类、接口或枚举预期文件:/Users/gcaruso/Documents/CISS 110/Module 3/Module 4/In_Class_Module_8.java [行:27 ] 错误:/Users/gcaruso/Documents/CISS 110/Module 3/Module 4/In_Class_Module_8。java:27:类、接口或枚举预期文件:/Users/gcaruso/Documents/CISS 110/Module 3/Module 4/In_Class_Module_8.java [行:32] 错误:/Users/gcaruso/Documents/CISS 110/Module 3/Module 4/In_Class_Module_8.java:32:类、接口或枚举预期文件:/Users/gcaruso/Documents/CISS 110/Module 3/Module 4/In_Class_Module_8.java [行:33] 错误:/Users/gcaruso /Documents/CISS 110/Module 3/Module 4/In_Class_Module_8.java:33:需要类、接口或枚举/Users/gcaruso/Documents/CISS 110/Module 3/Module 4/In_Class_Module_8.java:33:需要类、接口或枚举/Users/gcaruso/Documents/CISS 110/Module 3/Module 4/In_Class_Module_8.java:33:需要类、接口或枚举