Question: This is a minesweeper Java problem. I am trying to eliminate whitespace at the end of my output. I'm not sure what to do. For
This is a minesweeper Java problem. I am trying to eliminate whitespace at the end of my output. I'm not sure what to do. For input:
2 2
2
0 0
1 1
I get an output of
* 2
2 *
this is correct, but there is a hidden space after each ending character of the output. Any help would be much appreciated. hers my code so far:
import java.util.Scanner;
public class Minesweeper {
static boolean isValid(int row, int col, int[][] grid) {
if (row >= 0 && row < grid.length && col >= 0 && col < grid[row].length) {
return true;
}
return false;
}
public static void main(String[] args) {
Scanner scanner = new Scanner(System.in);
int m = scanner.nextInt();
int n = scanner.nextInt();
int grid[][] = new int[m][n];
for (int i = 0; i < m; i++) {
for (int j = 0; j < n; j++) {
grid[i][j] = 0;
}
}
int b = scanner.nextInt();
for (int i = 0; i < b; i++) {
int row = scanner.nextInt();
int col = scanner.nextInt();
grid[row][col] = -1;
if (isValid(row - 1, col - 1, grid)) {
if (grid[row - 1][col - 1] != -1) {
grid[row - 1][col - 1]++;
}
}
if (isValid(row - 1, col, grid)) {
if (grid[row - 1][col] != -1) {
grid[row - 1][col]++;
}
}
if (isValid(row - 1, col + 1, grid)) {
if (grid[row - 1][col + 1] != -1) {
grid[row - 1][col + 1]++;
}
}
if (isValid(row, col - 1, grid)) {
if (grid[row][col - 1] != -1) {
grid[row][col - 1]++;
}
}
if (isValid(row, col + 1, grid)) {
if (grid[row][col + 1] != -1) {
grid[row][col + 1]++;
}
}
if (isValid(row + 1, col - 1, grid)) {
if (grid[row + 1][col - 1] != -1) {
grid[row + 1][col - 1]++;
}
}
if (isValid(row + 1, col, grid)) {
if (grid[row + 1][col] != -1) {
grid[row + 1][col]++;
}
}
if (isValid(row + 1, col + 1, grid)) {
if (grid[row + 1][col + 1] != -1) {
grid[row + 1][col + 1]++;
}
}
}
System.out.println();
for (int i = 0; i < m; i++) {
for (int j = 0; j < n; j++) {
if (grid[i][j] == -1) {
System.out.print("* ");
} else {
System.out.print(grid [i][j] + " ");
}
}
System.out.println();
}
}
}
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