?? factorial.txt
字號:
// Program to compute the factorial of a
// number entered by the user
import javax.swing.JOptionPane;
public class Factorial
{
public static void main(String[] args)
{
int fact = 1;
String numStr;
numStr = JOptionPane.showInputDialog(
"Enter a value for n: " );
int n = Integer.parseInt(numStr);
while (n > 0)
{
fact *= n;
n--;
}
JOptionPane.showMessageDialog(null,
numStr + "! = " + fact);
System.exit(0);
}
}
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