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Factorial Number using Forloop
Program
class Main
{
int x,n=5,fact=1;
for(x=1; x<=n; x++)
{
fact=fact*x;
}
System.out.print(fact);
}
}
Using CommandLine Arguments
class Main
{
public static void main(String args[])
{
int x,n,fact=1;
n=Integer.parseInt(args[0]);
for(x=1; x<=n; x++)
{
fact=fact*x;
}
System.out.print(fact);
}
}
Using Scanner
import java.util.*;
class Main
{
public static void main(String args[])
{
int x,n,fact=1;
Scanner s=new Scanner(System.in);
System.out.println("Enter n value");
n=s.nextInt();
for(x=1; x<=n; x++)
{
fact=fact*x;
}
System.out.print(fact);
}
}
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