java - 跳过 while 循环的第一行

Question

这个问题已经存在:

Scanner issue when using nextLine after nextXXX [duplicate]

已关闭 9 年前。

ask=1;
while(ask==1)
{
    System.out.println("What is your phrase?");
    phrase=sc.nextLine();
    System.out.println("What is your additive key?");
    key=sc.nextInt();
    String code=addit(phrase, key);
    System.out.println(code);
    System.out.println("Enter 1 to go again");
    ask=sc.nextInt();
}

第一次通过循环后直接跳到询问我的附加 key 是什么，有人知道为什么吗？

Answer 1

因此，根据 @PakkuDon 的说法，这应该可以解决问题:

ask = 1;
while(ask == 1)
{
    System.out.println("What is your phrase?");
    phrase = sc.nextLine();
    System.out.println("What is your additive key?");
    key = sc.nextInt();
    String code = addit(phrase, key);
    System.out.println(code);
    System.out.println("Enter 1 to go again");
    ask = sc.nextInt();
    String tmp = sc.nextLine();
}