java跳过if else语句

Question

我制作了一个程序，允许用户制作芝士汉堡，然后询问他们是否想要配菜，然后询问他们是否想要订购另一个芝士汉堡。当我运行该程序时，它会跳过最后一个 if else 语句。

   String orderAnother = sc.nextLine();
if (orderAnother.equalsIgnoreCase("yes")) {
    System.out.println("Great! Another cheeseburger is on its way!");
} else {
    System.out.println("Okay! Thanks for stopping at The Burger Shack and have a great day!");
}

有什么我无法弄清楚的错误吗？感谢帮助!

Answer 1

The problem is

because the Scanner#nextInt method does not consume the last newline character of your input, and thus that newline is consumed in the next call to Scanner#nextLine

解决方案

要么触发一个空白的 nextLine() 来使用换行符，要么将 nextInt() 更改为 nextLine() 并将其解析为一个整数。

更多详细信息位于此处:Scanner is skipping nextLine() after using next(), nextInt() or other nextFoo() methods