Write a Java-program to print Factorial Number using do while loop ?
Write a Java-program to print Factorial Number using do while loop ?
Write a Java-program to print Factorial Number using do while loop ?
Program
public class Main
{
public static void main(String args[])
{
int x=1,n=5,fact=1;
do
{
fact=fact*x;
x++;
}while(x<=n);
System.out.print(n+" Factorial is "+fact);
}
}
Output:
120
Using CommandLine Arguments
public class Main
{
public static void main(String args[])
{
int x=1,n,fact=1;
n=Integer.parseInt(args[0]);
do
{
fact=fact*x;
x++;
}while(x<=n);
System.out.print(n+" Factorial is "+fact);
}
}
Output:
120
Using Scanner Class
import java.util.*;
public class Main
{
public static void main(String args[])
{
int x=1,n,fact=1;
Scanner s=new Scanner(System.in);
System.out.println("Enter n value : ");
n=s.nextInt();
do
{
fact=fact*x;
x++;
}while(x<=n);
System.out.print(n+" Factorial is "+fact);
}
}
Output:
Enter n value : 5
120
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