Create a class named "Average" having a method calculateAverage () that calculates the average of three numbers entered by user and print the average.

Here's the code for the Average class:

Source Code..

import java.util.Scanner;

 

class Average {

    public static void calculateAverage() {

        Scanner input = new Scanner(System.in);

        System.out.print("Enter three numbers: ");

        double num1 = input.nextDouble();

        double num2 = input.nextDouble();

        double num3 = input.nextDouble();

        double average = (num1 + num2 + num3) / 3;

        System.out.println("The average is " + average);

        input.close();

    }

}

 

Table of Contents:

 

Class: Average

Method: calculateAverage()

Inputs: None

Output: None

Description: This method prompts the user to enter three numbers, calculates their average, and prints the result to the console. It uses a Scanner object to read user input from the console. The close() method is called on the Scanner object to release any system resources associated with it.

 

To use this class, you can create an instance of the Average class and call the calculateAverage() method:

 

public static void main(String[] args) {

    Average avg = new Average();

    avg.calculateAverage();

}

 

When you run this code, it will prompt the user to enter three numbers, calculate their average, and print the result to the console.

 

here are some additional points about the Average class:

 

The Scanner class is used to read user input from the console. It takes System.in as its argument to indicate that input should be read from the standard input stream.

The nextDouble() method is used to read the three numbers entered by the user. This method reads the next token of input as a double value.

The average is calculated by adding the three numbers together and dividing by 3.

The System.out.println() method is used to print the average to the console.

The close() method is called on the Scanner object to release any system resources associated with it. This is good practice to ensure that resources are not leaked.

Note that the calculateAverage() method is declared as static. This means that it can be called without an instance of the Average class. Therefore, you can call it directly from the main() method without first creating an instance of the Average class.

When using the Scanner class, it is good practice to close the scanner object once it is no longer needed. In this example, we close the scanner after reading the input.