Write a Java-program to print Factorial of upto N Numbers using while loop ?

Write a Java-program to print Factorial of upto N Numbers using while loop ?

Program

public class Main
{
    public static void main(String args[])
    {
        int x=1,n=5,fact=1;
        while(x<=n)
        {  
            fact=fact*x;  
            System.out.println(x+" Factorial is: "+fact);
            x++;
        }
        
    }
}	

1 Factorial is: 1
2 Factorial is: 2
3 Factorial is: 6
4 Factorial is: 24
5 Factorial is: 120

Using CommandLine Arguments

public class Main
{
    public static void main(String args[])
    {
        int x=1,n,fact=1;
        n=Integer.parseInt(args[0]);
        while(x<=n)
        {  
            fact=fact*x;  
            System.out.println(x+" Factorial is: "+fact);
            x++;
        }
        
    }
}	

1 Factorial is: 1
2 Factorial is: 2
3 Factorial is: 6
4 Factorial is: 24
5 Factorial is: 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();
        while(x<=n)
        {  
            fact=fact*x;  
            System.out.println(x+" Factorial is: "+fact);
            x++;
        }
        
    }
}	

Enter n value : 5
1 Factorial is: 1
2 Factorial is: 2
3 Factorial is: 6
4 Factorial is: 24
5 Factorial is: 120

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