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public class MainClass {
public static void main(String args[]) {
for (int counter = 0; counter <= 10; counter++)
System.out.printf("%d! = %d\n", counter, factorial(counter));
}
// recursive declaration of method factorial
public static long factorial(long number) {
if (number <= 1) // test for base case
return 1; // base cases: 0! = 1 and 1! = 1
else
// recursion step
return number * factorial(number - 1);
}
}
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