java :如何在for循环中获取内部详细信息

Question

public void two(final BeanForm[] captureddata)
{
  for (BeanForm form : captureddata) 
  {
    if (form.getCyclicType() != null) 
    {
      logger.info("The Cyclic Type is"+ form.getCyclicType().value());
    }

    if (form.getTicketType() != null) 
    {
      logger.info("The Ticket Type is"+ form.getTicketType().value());
    }
  }
}

上面的代码运行良好，但是我在日志文件中看到的输出是(如果BeanForm的长度是2)

11/Nov/2011 20:15:51   - The Cyclic Type is  DTI
11/Nov/2011 20:15:51   - The Ticket Type is MMTS
11/Nov/2011 20:15:51   - The Cyclic Type is DTI
11/Nov/2011 20:15:51   - The Ticket Type is MMTS

我只想知道是否有可能获得数组的详细信息，例如，此数据属于哪个数组

The array[1]  Cyclic Type is  DTI 
The array[2]  Cyclic Type is  SAG

Answer 1

只需使用外部计数：

public void two(final BeanForm[] captureddata)
{
  int count = 0;

  for (BeanForm form : captureddata) 
  {
    if (form.getCyclicType() != null) 
    {
      logger.info(count + " The Cyclic Type is"+ form.getCyclicType().value());
    }

    if (form.getTicketType() != null) 
    {
      logger.info(count + " The Ticket Type is"+ form.getTicketType().value());
    }

    count++;
  }
}

或者作为一个普通的for循环

public void two(final BeanForm[] captureddata)
{
  for (int i=0; i<captureddata.length; i++)
  {
    BeanForm form = capturedata[i];

    if (form.getCyclicType() != null) 
    {
      logger.info(i+ " The Cyclic Type is"+ form.getCyclicType().value());
    }

    if (form.getTicketType() != null) 
    {
      logger.info(i+ " The Ticket Type is"+ form.getTicketType().value());
    }
  }
}

Answer 2

如果你指的是循环中的索引-不是。您需要显式地执行此操作：

for (int i = 0; i < capturedData.length; i++)
{
    BeanForm form = capturedData[i];
    // Now you have both form and i.
}

Answer 3

一种可能的方法是在for循环中维护一个计数器，您可以将该计数器与array[]一起使用，如下所示：

int i=0;
for-each loop
{
    //print array[i]
    //increment i
}