PATTERN 24

import java.util.*;

class Pattern_24{

public static void main(String args[]){

Scanner sc= new Scanner(System.in);

System.out.println("Enter no of rows");

int n= sc.nextInt();

int r,c,blnk=0;

char ch='*';

for(r=n;r>=1;r--)

{

                for(blnk=n-1;blnk>=r;blnk--)

                {

                System.out.print(" ");

                }

                for(c=1;c<=n;c++)

                {             

                if(r==1 || r==n || c==1 || c==n)               System.out.print(ch);

                else                                                                        System.out.print(" ");

                }

System.out.println();

}

}}