package class40;

public class Code08_PrintStar {

public static void printStar(int N) {

int leftUp = 0;

int rightDown = N - 1;

char[][] m = new char[N][N];

for (int i = 0; i < N; i++) {

for (int j = 0; j < N; j++) {

m[i][j] = ' ';

}

}

while (leftUp <= rightDown) {

set(m, leftUp, rightDown);

leftUp += 2;

rightDown -= 2;

}

for (int i = 0; i < N; i++) {

for (int j = 0; j < N; j++) {

System.out.print(m[i][j] + " ");

}

System.out.println();

}

}

public static void set(char[][] m, int leftUp, int rightDown) {

for (int col = leftUp; col <= rightDown; col++) {

m[leftUp][col] = '*';

}

for (int row = leftUp + 1; row <= rightDown; row++) {

m[row][rightDown] = '*';

}

for (int col = rightDown - 1; col > leftUp; col--) {

m[rightDown][col] = '*';

}

for (int row = rightDown - 1; row > leftUp + 1; row--) {

m[row][leftUp + 1] = '*';

}

}

public static void main(String[] args) {

printStar(5);

}

}