java - 未读取变量

Question

代码中 (cancel1 = 2) boolean 值“cancel”未被读取的部分:

while (done !=0){
  pizzaChoice = readInt ("Choose the type of pizza you wish to order");
  double quantity = readInt ("How many " + type[pizzaChoice] + " pizzas do you wish to buy (Maximum pizzas per order is 5)");   

  if(quantity >= max){
    System.out.println("Sorry you cannot order more than five pizzas");


    if ((quantity - max) <= 0){
      double pizzasLeft = max - quantity;

      System.out.println("You can still order " + pizzasLeft + " pizzas");

      pizzasLeft2 = pizzasLeft2 - pizzasLeft;

下一个if循环就是问题所在

              if (pizzasLeft2 <= 0){
                boolean cancel = true;
                int cancel1 = readInt("Press 2 to cancel your order and start again"); 
                if(cancel1 == 2){
                  cancel = false;
                }

              }
            }
          }

          done= readInt ("Press 0 if you are done or press 1 to make another pizza order");
          double total1 = quantity*price[pizzaChoice];
          total2 = total2 + total1;
        }

Answer 1

与cancel相关的代码对我来说似乎是正确的。
我建议您检查具有此值的 block 。 是否满足首先进入if block 的条件？
提示是另一个取消全局变量可能会对其角色产生歧义。