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PATTERN 23




import java.util.*;
class Pattern_23{
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=1;r<=n;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();
}

}}