阶乘计算示例(1) 8-4 ·简单实现： public class Factorial{ public static int factorial(int x){ int fact 1; for (inti=2;i <=x;i++) /1o0P fact *i; //shorthand for:fact=fact*i; return fact; 3 public class ComputingFactorial{ public static void main(String arg[]){ int a Factorial.factorial(Integer.parselnt(arg[O]); System.out.println(a); Programming in Java JAVA8-4 Programming in Java 阶乘计算示例（1） public class Factorial { public static int factorial(int x) { int fact = 1; for (int i =2; i <= x; i ++) //loop fact *= i; //shorthand for: fact=fact*i; return fact; } } public class ComputingFactorial { public static void main(String arg[]) { int a = Factorial.factorial(Integer.parseInt(arg[0])); System.out.println(a); } } • 简单实现: