如何接收另一班的阶乘结果？

Question

问题是收到以前的计算结果。

public class FactorialArray { 

    public static long[] factorial = new long[21]; 
    public static int fact = 0; 

    static { 
     factorial[0] = 1; 
    } 

    public static long factorial(int x) { 
     while (fact < x) { 
      long element; 
      factorial[fact] = element.getFact(element); 
      fact++; 
     } 
     return factorial[x]; 
    } 

这里，它是我计算阶乘的类：

public class Factorial { 

    private long factorialCalculator(int x){ 
     if(x==0 || x==1) 
      return 1; 
     else 
      return (long)x*factorialCalculator(x-1); 
    } 

    public long getFact(int x){ 
     return factorialCalculator(x); 
    } 
} 

Answer 1

公共静态长[]阶乘（INT X）{ 阶乘factObj =新阶乘（）;

while (fact < x) { 
     long element; 
     factorial[fact] = factObj.getFact(fact); 
     fact++; 
    } 
    return factorial; 
} 

static class Factorial { 

    private long factorialCalculator(int x) { 
     if (x == 0 || x == 1) 
      return 1; 
     else 
      return (long) x * factorialCalculator(x - 1); 
    } 

    public long getFact(int x) { 
     return factorialCalculator(x); 
    } 
}