在下面的if语句中,如果它是false,它会正确地打印else语句。 "No order with this number exists, please create a new order."
,如果它是真的,它也会正确打印第一条语句,但它总是跟着else
语句。为什么break;
在第一个if case打印后终止?为什么在打印第一个情况后开关盒没有断开?
case(3):{
System.out.println("");
System.out.println("Please Enter The Order Number: ");
int orderno = input.nextInt();
Iterator<Order> orderIterator3 = orders.getIterator();
Order currentorder;
String itemRemoved = null;
StackInterface <String> newItems = new ArrayStack<String>();
while (orderIterator3.hasNext()) { //iterate through the list until an order with a matching order no is found
currentorder = orderIterator3.next();
if(currentorder.getNumber() == orderno) { //access the Items in the list by their order number
newItems = currentorder.getItems(); //Copy the existing items into a new stack
if (!newItems.isEmpty())
itemRemoved = newItems.pop();
System.out.println("The last item: " + itemRemoved + "\n was successfully removed from your order!"); break;
}//End if
}//End While
System.out.println("No order with this number exists, please create a new order."); break;
}// End Case 3
因为你没有'break'语句。 –
它打破了while()的封闭性,因此无法打破开关。 –
'System.out.println(“最后一项:”+ itemRemoved +“\ n已成功从您的订单中删除!”);打破; '我做 – helloworld