Question

DESCRIPTION:

You will be given a 2D array, called matrix, of Strings. The array has an unknown number of cells filled with data. Your goal is to iterate through the 2D array and keep a count of how many cells are full. You will be given the dimensions of the array.

INPUT:

All input has been handled for you:

• Two integers denoting the dimensions of the array. These are the integer variables rows and cols.
• A partially filled 2-D array.
  • Cells that contain the word "empty" are considered empty (non-filled) cells.

PROCESSING:

• Use nested loops to iterate through the 2-D array.
• Keep track of the number of cells that have data (i.e. those cells that do not contain the word "empty").
• Print the result in the format below.

OUTPUT:

Sample input/output:

Input

Output

3
3

empty	empty	A
empty	B	empty
C	D	empty

There were a total of 4 full cells

Given code :

import java.util.Scanner;

public class CellFinder {

public static void main(String[] args) {
Scanner in = new Scanner(System.in);
  
int rows = in.nextInt();
int cols = in.nextInt();
in.nextLine();
  
String item;
String[][] matrix = new String[rows][cols];

for (int i = 0; i<rows ; i++) {
matrix[i] = in.nextLine().split(" ");
}

//************************Your code starts here****************************************************************************************

}

}

please answer question use JAVA!

Answer 1

Code:

import java.util.Scanner;

public class Main {


    public static void main(String[] args) 
    {
        Scanner in = new Scanner(System.in);
          
        int rows = in.nextInt();
        int cols = in.nextInt();
        int c=0;
        in.nextLine();
        
          
        String item;
        String[][] matrix = new String[rows][cols];
        
        for (int i = 0; i<rows ; i++) 
        {
            matrix[i] = in.nextLine().split(" ");
        }
        
        //************************Your code starts here****************************************************************************************
        
        for (int i = 0; i<rows ; i++) 
        {
            for (int j = 0; j<cols ; j++)
            {
                if(matrix[i][j].equals("empty")) //checks if the element in ith row and jth column is 'empty'
                {
                    continue; //if empty then dont count
                }
                else
                {
                    c++; //if it is not empty then increase the value
                }
                    
            }
        }
        
        System.out.println("\nThere were a total of " + c + " full cell(s)");
        
    }


}

Output: