Say you have a recursive method, and you post-increment/decrement a value in the recursive call. Why will this result in a stack overflow exception when a pre-increment/decrement will not?

Ex.

numberCount(currentNumber++); //Stack overflow exception

numberCount(++currentNumber); //No stack overflow exception

Thanks in advance for any clarification.

解决方案

The first

numberCount(currentNumber++); //Stack overflow exception

is equivalent to:

numberCount(currentNumber);

currentNumber += 1;

while the the second

numberCount(++currentNumber); //No stack overflow exception

is equivalent to

currentNumber += 1;

numberCount(currentNumber);

Need I explain more?