do {
      // do something here
      // the loop condition may change here
  } while (loop_boolean_condition)

tkzyxtxn wrote:
do...while的葱兴承蚴窍戎葱泻笮Ｑ椋琻--后，n为一个固定值，执行循环体后，进行循环条件校验，不符合就会跳出循环。
在此程序中若循环条件为n==9，循环会执行两次，其余为一次。

  n--;
  // which is equivalent to n = n -1;
  // n was 10, after executing once, it is 9...

why wrote:
gongshi:

usually I'll try to help every newcomer once, no matter how lazy s/he is.
I'll consider zero-tolerance.

class A
{
public static void main(String[] args)
{
int n = 10;
do
{
System.out.println(n);
n--;
} while(!(n==0));

}
}