ReverseTringle.java

import java.util.Scanner;

public class ReverseTringle 
{
    static void row(int i, int n)
    {
        if(i <=n)
        {
            space(1,i,n);
            col(2 * n -1,i);
            System.out.println();
            row(i+1, n);
        }
    }
    static void space(int j , int i ,int n)
    {
        if(j < i)
        {
            System.out.print(" ");
            space(j+1 , i, n);
        }
    }
    static void space(int j , int i )
    {
        if(j >=2*i-1)
        {
            System.out.print("*");
            col(j-1 ,i);
        }
    }
    public static void main(String[] args) 
    {
        Scanner in = new Scanner(System.in);
        System.out.println("Enter Any Size ");
        int n = in.nextInt();
        row(1, n);
        in.close();
        
    }
}