Description

Mode is a value which occur most frequently in a array.

Ex: arr[] = {3,6,2,3,7}
	Mode will be 3 as it's frequency is 2 which is greatest in this array.

C/C++

/* C Program to Find Mode of a Array */
//Save it as ModeArray.c

#include<stdio.h>
int main(){

    int i, j, n;

    printf("Enter the size of array : ");
    scanf("%d",&n);

    int arr[n];

    printf("Enter the elements of array : ");
    for(i=0;i<n;i++) {
        scanf("%d",&arr[i]);
    }

    printf("Entered elements are : ");
    for(i=0;i<n;i++) {
        printf("%d ",arr[i]);
    }

    int maxVal=0, count=0, maxCount=0;

    for(i=0;i<n;i++) {
        count = 0;
        for(j=0;j<n;j++) {
            if(arr[i] == arr[j]) {
                count++;
            }
        }
        if (count > maxCount) {
            maxCount = count;
            maxVal = arr[i];
         }
    }

    printf("\nThe mode is : %d as count is : %d",maxVal,maxCount);
    
    return 0;
}

Input:
Enter the size of array : 
5
Enter the elements of array : 
3
6
2
3
7

Output:
Entered elements are : 
3 6 2 3 7 
The mode is : 3 as count is : 2

Java

/* Java Program to Find Mode of a Array */
//Save it as ModeArray.java

import java.io.*;
import java.util.Scanner;

public class ModeArray {

    public static void main(String[] args) {

        Scanner scanner = new Scanner(System.in);
        
        System.out.println("Enter the size of array : ");
        int n = scanner.nextInt();
        
        int arr[] = new int[n];
        
        System.out.println("Enter the elements of array : ");
        for(int i=0;i<n;i++) {
            arr[i] = scanner.nextInt();
        }
        
        System.out.println("Entered elements are : ");
        for(int i=0;i<n;i++) {
            System.out.print(arr[i]+" ");
        }
        
        int maxVal=0, count=0, maxCount=0;
        
        for(int i=0;i<n;i++) {
            count = 0;
            for(int j=0;j<n;j++) {
                if(arr[i] == arr[j]) {
                    count++;
                }
            }
            if (count > maxCount) {
                        maxCount = count;
                        maxVal = arr[i];
                   }
        }
        
        System.out.println("\nThe mode is : "+maxVal+" as count is : "+maxCount);
    }
}

Input:
Enter the size of array : 
5
Enter the elements of array : 
3
6
2
3
7

Output:
Entered elements are : 
3 6 2 3 7 
The mode is : 3 as count is : 2

Related Programs