Kotlin program to find frequencies of even and odd numbers in a matrix

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YasminRadwan26

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2022-07-14

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Given a matrix, we have to find frequencies of even and odd numbers.

Example:

    Input:
    matrix:
    [4, 5]
    [6, 0]
    [9, 2]

    Output:
    Even Elements Frequency : 4
    Odd  Elements Frequency : 2

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YasminRadwan26

2022-07-14

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Program to find frequencies of even and odd numbers in a matrix in Kotlin

package com.includehelp

import java.util.*

// Main function, Entry Point of Program
fun main(args: Array<String>) {

    //variable of rows and col
    val rows: Int
    val column: Int

    var oddCount  = 0
    var evenCount = 0

    //Input Stream
    val scanner = Scanner(System.`in`)

    //Input no of rows and column
    print("Enter the number of rows and columns of matrix : ")
    rows   = scanner.nextInt()
    column = scanner.nextInt()

    //Create Array
    val matrixA     = Array(rows) { IntArray(column) }

    //Input Matrix
    println("Enter the Elements of First Matrix ($rows X $column} ): ")
    for(i in matrixA.indices){
        for(j in matrixA[i].indices){
            print("matrixA[$i][$j]: ")
            matrixA[i][j]=scanner.nextInt()

            //count Odd and Even elements Frequency
            if(matrixA[i][j]%2==0) evenCount++ else oddCount++
        }
    }

    //print Matrix A
    println("Matrix A : ")
    for(i in matrixA.indices){
        println("${matrixA[i].contentToString()} ")
    }

    //Print Frequency
    println("Even Elements Frequency : $evenCount")
    println("Odd  Elements Frequency : $oddCount")
}

Output

Run 1:
Enter the number of rows and columns of matrix : 2
4
Enter the Elements of First Matrix (2 X 4} ):
matrixA[0][0]: 3
matrixA[0][1]: 4
matrixA[0][2]: 5
matrixA[0][3]: 7
matrixA[1][0]: 0
matrixA[1][1]: 9
matrixA[1][2]: 1
matrixA[1][3]: -4
Matrix A :
[3, 4, 5, 7]
[0, 9, 1, -4]
Even Elements Frequency : 3
Odd  Elements Frequency : 5
-----------
Run 2:
Enter the number of rows and columns of matrix : 3
2
Enter the Elements of First Matrix (3 X 2} ):
matrixA[0][0]: 4
matrixA[0][1]: 5
matrixA[1][0]: 6
matrixA[1][1]: 0
matrixA[2][0]: 9
matrixA[2][1]: 2
Matrix A :
[4, 5]
[6, 0]
[9, 2]
Even Elements Frequency : 4
Odd  Elements Frequency : 2

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