该程序检查输入的电子邮件地址是否包含@和.edu。
如果不是这样,则需要返回到步骤,我想我可以使用do-while,但是我还没有一个可以工作的,如何将if-else语句嵌套在do-while中?谢谢!
if (UserEmail.contains("@")) {
if (UserEmail.contains(".edu")){
System.out.print("Please create a password: ");
PassWord = kb.nextLine();
System.out.println(UserEmail.replaceAll("@\\S+?\\.edu\\b", ""));
System.out.print("Your password is " + PassWord);
} else {
System.out.print("email is not valid Please, try again.")
} else {
System.out.print("email is not valid Please, try again.");
// at this point it should repeat and ask for the email again
}
}
最佳答案
为了简化您的if-else
代码,请考虑使用
if (UserEmail.contains("@") && UserEmail.contains(".edu")) {
.
.
}
可以包装在
do - while
中do {
if (UserEmail.contains("@") && UserEmail.contains(".edu")) {
.
.
break;
}
System.out.print("email is not valid Please, try again.")
}
while (true);