22 program [22] recursive factorial
Title: Method for Constructing recursive 5 !.
Program analysis: recursive formula: fn = fn_1 * 4!
package cskaoyan; public class cskaoyan22 { @org.junit.Test public void recursion() { long number = 5; System.out.println(factorial(number)); } private long factorial(long number) { if (number == 1 || number == 0) { return 1; } else { return number * factorial(number - 1); } } }