java两个分支都在我的ifelse语句中执行
当我请求教师输入时,它将正确执行,直到输出被打印出来,然后它将打印请求800号(仅针对学生)。我不明白为什么在你输入教员后,它总是问学生特定的问题
public class UniversityIDApp {
public static void main(String[] args){
// display a welcome message
System.out.println("Welcome to the University ID application");
System.out.println();
Scanner sc = new Scanner(System.in);
String choice = "y";
while(choice.equalsIgnoreCase("y"))
{
// get user entries
String userType = Validator.getString(sc,
"Create student or faculty? (s/f): ", "s", "f");
String firstName = Validator.getString(sc,
"Enter first name: ");
String lastName = Validator.getString(sc,
"Enter last name: ");
String email = Validator.getString(sc,
"Enter e-mail: ");
if (userType.equalsIgnoreCase("f"))
{
String department = Validator.getString(sc,
"Enter department: ");
// create faculty object
Faculty f = new Faculty() {};
f.setFirstName(firstName);
f.setLastName(lastName);
f.setEmail(email);
f.setDepartment(department);
System.out.print("Southern Illinois University Faculty ");
System.out.print("\nName: " + f.getFirstName() + " " + f.getLastName() + "\n"
+ "Email: " + f.getEmail() + "\n" + "Department: " + f.getDepartment() + "\n" );
System.out.println();
}
else if(userType.equalsIgnoreCase("s"));
{
Student s = new Student() {};
String student800Number = Validator.getString(sc,
"Enter your 800 number: ");
s.setFirstName(firstName);
s.setLastName(lastName);
s.setEmail(email);
s.setStudent800Number(student800Number);
System.out.print("Southern Illinois University Student");
System.out.print("\nName: " + s.getFirstName() + " " + s.getLastName() + "\n"
+ "Email: " + s.getEmail() + "\n" + "Student 800 Number: " + s.getStudent800Number() + "\n" );
System.out.println();
}
System.out.print("Continue? (y/n): ");
choice = sc.next();
System.out.println();
}
}
# 1 楼答案
你的
else if
子句有一个分号;
,使它什么也不做与此相同:
如果将大括号放在同一行中(这是Java的惯例),这可能会更容易发现