chapter18n1.java

JAVA源代码程序aashjkjhkjhkjhjkhkj

/**
 * Example of a recursive version of "factorial"
 */

import java.lancs.* ;

public class Chapter18n1
    {
    public static void main(String[] args) throws Exception
	{
	BasicIo.prompt("number? ") ;
	int n = BasicIo.readInteger() ;
	System.out.println("The factorial of " + n + " is " + factorial(n)) ;
	} // end of main method

    private static int factorial(int n)
	{
	if (n == 0)
	    return 1 ;
        else
	    return n * factorial(n - 1) ;
	} // end of method factorial
    } // end of class Chapter18n1