java program for average of three numbers code example

Example 1: Java program to calculate average of 3 numbers

// Java program to calculate average of 3 numbers
import java.util.Scanner;
public class AverageNumberDemo 
{
   public static void main(String[] args) 
   {
      Scanner sc = new Scanner(System.in);
      System.out.print("Please enter first number: ");
      double number1 = sc.nextDouble();
      System.out.print("Please enter second number: ");
      double number2 = sc.nextDouble();
      System.out.print("Please enter third number: ");
      double number3 = sc.nextDouble();
      System.out.print("The average of 3 numbers is: " + calculateAverage(number1, number2, number3));
      sc.close();
   }
   public static double calculateAverage(double num1, double num2, double num3)
   {
      return (num1 + num2 + num3) / 3;
   }
}

Example 2: java program to calculate average of n numbers

int a, b, c, d;
		a = 2;
		b = 3;
		c = 5;
		d = 10;
		System.out.println("Average of n nubers is: " + (a + b + c + d) / 4);
		// OR
		Scanner scanner = new Scanner(System.in);
		System.out.println("Enter 1st number: ");
		int firstNumber = scanner.nextInt();
		System.out.println("Enter 2nd number: ");
		int secondNumber = scanner.nextInt();
		System.out.println("Enter 3rd number: ");
		int thirdNumber = scanner.nextInt();
		System.out.println("Enter 4th number: ");
		int fourthNumber = scanner.nextInt();
		System.out.println("Enter 5th number: ");
		int fifthNumber = scanner.nextInt();
		System.out.println("Enter 6th number: ");
		int sixthNumber = scanner.nextInt();
		System.out.println("Enter Nth number: ");
		int nthNumber = scanner.nextInt();
		scanner.close();
		System.out.println("Average of abouve input numbers is: "
				+ (firstNumber + secondNumber + thirdNumber + fourthNumber + fifthNumber + sixthNumber + nthNumber)
						/ 7.0);