java.lang.Object
public class Factorial
A class whose methods implement a recursive solution to factorials.
| Constructor Summary | |
|---|---|
Factorial()
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| Method Summary | |
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static int |
factorial(int n)
A recursive method which calculates and returns the factorial of a positive integer or zero (0). |
static void |
start()
Gets an integer from the console, passes it to method factorial() and displays the resulting factorial to the console. |
| Methods inherited from class |
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clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
| Constructor Detail |
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public Factorial()
| Method Detail |
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public static int factorial(int n)
throws java.lang.Exception
n - an integer whose factorial is to be calculated
java.lang.Exception - thrown if parameter is a negative valuepublic static void start()
java.util.InputMismatchException - if user enters non-integer input