help!!

[abzksm]

how to output

square like this
*****
*....*
*....*
*****
using for loop any idea

[Minimacfox]

#include <iostream>
#include <fstream>
#include <cstdlib>
#include <string>
#include <cmath>
#include <windows.h>
using namespace std;

int main(){
char star = '*';
string space = "   ";

for(int i = 0; i < 5; i++)
    cout << star;
cout << endl;
for(int i = 0; i < 1; i++)
    cout << star << space << star;
cout << endl;
for(int i = 0; i < 1; i++)
    cout << star << space << star;
cout << endl;
for(int i = 0; i < 5; i++)
    cout << star;
}

[vlad from moscow]

#include <iostream>
#include <iomanip>

int main()
{
    while ( true )
    {
        std::cout << "Enter a non-negative number (0 - exit): ";
        unsigned int n = 0;
        std::cin >> n;
        
        if (!n ) break;
        
        std::cout << std::endl;
        
        for ( unsigned int i = 0; i < n; i++ )
        {
            const char asterisk = '*';
            std::cout.fill( i % ( n - 1) == 0 ? asterisk : ' ' );
            std::cout << asterisk << std::setw( n - 1 ) << asterisk << std::endl;
        }
    }
    
    return 0;
}