如何把以下nesed for loop改为nested do while loops?

Question

(问题的return 0; } 不须理会，只是错误地输入了)#include <iostream>using namespace std;int main(){ int rows, columns, i, j;char theChar;cout << "No. of rows? ";cin >> rows;cout << "No. of columns? ";cin >> columns;cout << "Which characters? ";cin >> theChar;for (i=0; i<rows; i++){ for (j=0; j<columns; j++)cout << theChar;cout << "\n";}return 0;}

Answer 1

while（i <rows)
{ while(j < columns)
{j++;
cout << theChar;
cout << "\n";
}
i++;
}
是这样吧？还是说必须要do...while的形式