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Mean of an Array in Java

The average of all the numbers in the array is referred to as the mean. In other words, it is the total of all the numbers in the array divided by the total number of numbers.

Get an array of Integers arr[] with size n and calculate the mean value of arr[]

Example

Input 1:

5

1 2 3 4 5

Output 1:

3

Explanation:

(1+2+3+4+5 = 15/5 = 3)

Try your Solution

Strongly recommended to Solve it on your own, Don't directly go to the solution given below.

public class Hello { public static void main(String args[]) { //Write your code here } }

Program or Solution

				
				
					
import java.util.*;
class Mean 
{
	public static void main(String args[])
    	{
		//Variable and  Object Declarations
       		Scanner input = new Scanner(System.in);
		int n;
		float sum = 0f, mean;
		//Getting size of Array & Declare Array arr[]
		n = input.nextInt();
		int arr[] = new int[n];
		//Get n values to array arr[]
		for(int i = 0; i<n; i++)
		{
			arr[i] = input.nextInt();
		}
		//Calcualte Sum and Mean
		
		for(int i = 0; i<n; i++)
		{
			sum+= arr[i];
		}
		
		mean = sum/n;
		System.out.print(mean);

      	}
}

Program Explanation

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