Minesweeper is a single-player game in which the player continuously selects different cells of an "m × n grid. each cell of the grid is either occupied by a bomb or is a safe cell. if a cell is occupied and the player selects the cell, the player loses. otherwise, the selected cell shows the number of bombs in the neighboring cells. a neighbor cell is a cell next to the current cell in the horizontal, vertical, and diagonal direction write a program that receives "m" and "n" as the number of rows and columns of the grid, respectively. in the second line, the user inputs an integer, "b", showing the number of bombs placed in the grid. it then follows by "b" lines of input from the user, each referring to the row and column index of each one of the bombs after receiving grid dimensions, the number of bombs, and bomb locations, you will need to display (print) the completed grid showing the bomb cells with and safe cells with the number of neighboring bombs to that cell.

//importing Scanner class to take input from the user

import java.util.Scanner;

public class MineSweeper {

public static void main(String[] args) {

// TODO Auto-generated method stub

// creating an object to the scanner class

Scanner sc = new Scanner(System.in);

int m,n;

System.out.print("Enter the number of rows:");

m = sc.nextInt();

System.out.print("Enter the number of Columns:");

n = sc.nextInt();

//creating grid with all spaces

char grid[][] = new char[m][n];

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

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

grid[i][j]=' ';

}

}

//taking number of bombs as input from the user

System.out.print("Enter the number of bombs:");

int b = sc.nextInt();

//putting the bombs in grid

for(int i=1;i<=b;i++) {

System.out.println("Enter the bomb position:");

System.out.print("row:");

int row = sc.nextInt();

System.out.print("Column:");

int col = sc.nextInt();

if(row>=0 && row<m && col>=0 && col<n)

grid[row][col]='*';

else {

System.out.println("Invalid row or column....");

i-=1;

}

}

int count ;

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

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

if(grid[i][j]!='*') {

count = numberOfBombs(grid,i,j,m,n);

char ch = intToChar(count);

grid[i][j] = ch;

}

}

}

// displaying the output of grid

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

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

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

}

System.out.println();

}

}

// converting digit ot char

public static char intToChar(int i) {

switch(i) {

case 0:

return '0';

case 1:

return '1';

case 2:

return '2';

case 3:

return '3';

case 4:

return '4';

case 5:

return '5';

case 6:

return '6';

case 7:

return '7';

case 8:

return '8';

case 9:

return '9';

default :

return '-';

}

}

//finding the number of bombs in neighbourhood of position in grid

public static int numberOfBombs(char grid[][], int i , int j, int m, int n) {

int count = 0;

if(i+1<m) {

if(grid[i+1][j]=='*')

count +=1;

if(j+1<n) {

if(grid[i+1][j+1]=='*')

count+=1;

}

if(j-1>=0) {

if(grid[i+1][j-1]=='*')

count+=1;

}

}

if(i-1>=0) {

if(grid[i-1][j]=='*')

count +=1;

if(j+1<n) {

if(grid[i-1][j+1]=='*')

count+=1;

}

if(j-1>=0) {

if(grid[i-1][j-1]=='*')

count+=1;

}

}

if(j+1<n) {

if(grid[i][j+1]=='*')

count +=1;

}

if(j-1>=0) {

if(grid[i][j-1]=='*')

count +=1;

}

return count;

}

}

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