└── Hallow sphere


/Hallow sphere:
--------------------------------------------------------------------------------
 1 | import java.util.*;
 2 | public class Main
 3 | {
 4 | 	public static void main(String[] args) {
 5 | 		Scanner Sc=new Scanner(System.in);
 6 | 		int i,j;
 7 | 		int n=Sc.nextInt();
 8 | 		int m=Sc.nextInt();
 9 | 		for(i=1;i<=n;i++){
10 | 		    for(j=1;j<=m;j++){
11 | 		        if(i==n||i==1||j==1||j==m)
12 | 		        {
13 | 		            System.out.print("*");
14 | 		        }
15 | 		        else{
16 | 		            System.out.print(" ");
17 | 		        }
18 | 		    }
19 | 		System.out.println();
20 | 		}
21 | 	}
22 | }
23 | 
24 | 


--------------------------------------------------------------------------------