Java

Practice code by myself

Calculator Java Project

This is a Java project that implements a Calculator class with a findAverage method. The findAverage method calculates the average of three numbers and returns the result rounded to two decimal digits.

Usage

To use the Calculator class, follow these steps:

1. Create an instance of the Calculator class.
2. Call the findAverage method with three numbers as arguments.
3. The method will return the average rounded to two decimal digits.

Sample Input and Output

1. double num1 = 65;
2. double num2 = 175;
3. double num3 = num1 / num2;
4. System.out.println(Math.round(num3 * 100.0) / 100.0);

import java.text.DecimalFormat;

class Calculator {
    DecimalFormat df = new DecimalFormat("0.00");

    public double findAverage(int number1, int number2, int number3) {
        double avg = (double) (number1 + number2 + number3) / 3;
        return Double.parseDouble(df.format(avg));
    }
}

class Tester {
    public static void main(String args[]) {
        Calculator calculator = new Calculator();
        double res = calculator.findAverage(12, 8, 15);
        System.out.println(res);

    }
}