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lang-java
ifthe code executes theforloop, but isn'tiat that moment 1, how does it become 2?iis 2. A fundamental concept in recursion is that the multiple calls are stacked up until you get back to them.i-1does not change the value ofi, instead it creates a new value, which is passed to the next invocation. But once the method returns, the value of the originaliis valid again,i-1is evaluated and that value is passed to the method call as argument.