java - 如何在java中将迭代计数值设置为字段

Question

我有一个通过 for-each 循环进行迭代的列表。所以我想要的是将值设置为 customerAttemptTemp.setIsActive("N") customerAttemptTemp.setAttemptCount(); 设置值应为 1。

最后 customerAttemptList 列表的大小为 5 的尝试计数需要为 5。

这是代码段。

 List<CustomerAttempt> customerAttemptList = customerAttemptService.findCustomerAttempts(customerAttemptWrong, _serviceContext);
      for (CustomerAttempt customerAttemptTemp : customerAttemptList) {
                    customerAttemptTemp.setIsActive("N");
                     customerAttemptTemp.setIsActive( // **Where the count need to be updated**);
                    customerAttemptService.update(customerAttemptTemp, _serviceContext);
      }

Answer 1

您可以通过在循环外部引入一个 count 变量来做到这一点，然后在每次迭代后增加它

int count = 1;
for(CustomerAttempt customerAttemptTemp : customerAttemptList) {
    customerAttemptTemp.setIsActive("N");
    customerAttemptTemp.setIsActive(count++);
    customerAttemptService.update(customerAttemptTemp, _serviceContext);
}