User-Defined Methods — Question 41

Question 39

Design a class to overload a function area( ) as follows :

(i) double area(double a, double b, double c) with three double arguments, returns the area of a scalene triangle using the formula :

$\text{area} = \sqrt{s(s-a)(s-b)(s-c)}$

where $s = \dfrac{a +b + c}{2}$

(ii) double area(int a, int b, int height) with three integer arguments, returns the area of a trapezium using the formula :

area = $\dfrac{1}{2}$ height(a + b)

(iii) double area(double diagonal1, double diagonal2) with two double arguments, returns the area of a rhombus using the formula :

area = $\dfrac{1}{2}$ (diagonal1 x diagonal2)

import java.util.Scanner;

public class KboatOverload
{
    double area(double a, double b, double c) {
        double s = (a + b + c) / 2;
        double x = s * (s-a) * (s-b) * (s-c);
        double result = Math.sqrt(x);
        return result;
    }
    
    double area (int a, int b, int height) {
        double result = (1.0 / 2.0) * height * (a + b);
        return result;
    }
    
    double area (double diagonal1, double diagonal2) {
        double result = 1.0 / 2.0 * diagonal1 * diagonal2;
        return result;
    }
}

Output