Question

write a java program to accept the three sides of triangle and calculate are using herons formula
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Answer 1

Explanation:

Java Program to Find the Area of a Triangle Using Heron's formula

The area of a triangle can be calulated as (s*(s-a)*(s-b)*(s-c))^(1/2), where s is semi-perimeter of the triangle. s = (a + b + c)/2. .

Time Complexity: O(1).

Sanfoundry Global Education & Learning Series – Java Programs

Answer 2

Explanation:

//Java Program to Find the Area of a Triangle Using Heron's formula

import java.io.BufferedReader;

import java.io.InputStreamReader;

public class HeronsFormula {

// Function to calculate area using Heron's Formula

static void area(double a, double b, double c){

double s = (a+b+c)/2;

s = s*(s-a)*(s-b)*(s-c);

System.out.println("Area of the triangle is " + Math.sqrt(s));

}

// Function to read user input

public static void main(String[] args) {

BufferedReader br = new BufferedReader(new InputStreamReader(System.in));

double a,b,c;

System.out.println("Enter the three sides of the triangle");

try{

a = Double.parseDouble(br.readLine());

b = Double.parseDouble(br.readLine());

c = Double.parseDouble(br.readLine());

}catch (Exception e){

System.out.println("An error occurred");

return;

}

if(a<0 || b<0 || c<0){

System.out.println("Invalid Input");

return;

}

area(a,b,c);

}

}