A matrix is a 2 D array Write a program thatask for the number

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A matrix is a 2-D array.

Write a program that:

ask for the number of row and number of column for the

matrix M

asks the user to enter the value of each cell of the matrix

(for example M[i][j])

displays 2*M (each value in a cell is multiplied by 2 and

displayed.

#include<iostream>

#include<cmath>

#include<vector>

#include<string>

class Mat {

void main()

{

int row, col, i, j;

cout<< \"enter number of rows: \";

Scanner p = new Scanner(System.in);

row = p.nextInt();

System.out.println(\"enter number of column\");

col = p.nextInt();

int a[i][j] = new int[row][col];

System.out.println(\"enter the value of each cell\");

for (i = 0; i<row; i++)

for (j = 0; j<col; j++)

a[i][j] = p.nextInt();

for (i = 0; i<row; i++)

for (j = 0; j<col; j++)

System.out.println(2 * a[i][j]);

}

}

Someone fix the code for me please

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Solution

Mat.java

import java.util.Scanner;

public class Mat {

/**

* @param args

*/

public static void main(String[] args) {

// TODO Auto-generated method stub

int row, col, i, j;

Scanner p = new Scanner(System.in);

System.out.println(\"enter number of rows\");

row = p.nextInt();

System.out.println(\"enter number of columns\");

col = p.nextInt();

int a[][] = new int[row][col];

System.out.println(\"enter the value of each cell\");

for (i = 0; i<row; i++)

for (j = 0; j<col; j++)

a[i][j] = p.nextInt();

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A matrix is a 2-D array. Write a program that: ask for the number of row and number of column for the matrix M asks the user to enter the value of each cell of the matrix (for example M[i][j]) displays 2*M (each value in a cell is multiplied by 2 and displayed. #include #include #include #include class Mat { void main() { int row, col, i, j; cout ...
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