import java.util.Scanner;
public class NestedWhile
{
public static void main(String[]args)
{
Scanner input = new Scanner(System.in);
System.out.println("Masukan angka");
int n = input.nextInt();
int i=1,j;
while(i<=n)
{
j=1;
if (i==1 || i==n)
{
while(j<=n)
{
System.out.print("* ");
j++;
}
}
else
{
while(j<=n)
{
if(j==1 || j==n)
{
System.out.print("* ");
}
else
{
System.out.print(" ");
}
j++;
}
}
System.out.print("\n");
i++;
}
}
}
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