题解 | #空心正方形图案#
空心正方形图案
http://www.nowcoder.com/practice/72347ee949dc47399186ee183632f303
import java.util.Scanner;
public class Main {
public static void main(String[] args) {
Scanner sc = new Scanner(System.in);
while(sc.hasNextInt()) {
int n= sc.nextInt();
for(int i=1;i<=n;i++) {
if(i==1||i==n) {
for(int j=1;j<=n;j++) {
System.out.print("* ");
}
System.out.println();
} else {
for(int j=1;j<=n;j++) {
if(j==1||j==n) {
System.out.print("* ");
} else {
System.out.print(" ");
}
}
System.out.println();
}
}
}
}
}
