Write a java program which receives 3 integers as input data. These integers wil

Question

Write a java program which receives 3 integers as input data. These integers will be as the length of 3 sides of a triangle. You program needs to check if the input data can make a triangle, and then prints out the result. If they cannot make a triangle, print out a message, otherwise print out the area of the triangle. But do not use Scanner. Use another one input approach such as (Console or InputStreamReader)

The output looks like the following:

Hints:

Show your program works on NetBeans.

run: Enter first side length: 3 Enter second side length: 4 Enter third side length: 5 The area of this triangle is:6 BUILD SUCCESSFUL (total time: 10 seconds run: Enter first side length: 1 Enter second side length: 1 Enter third side length: 3 These sides cannot make a triangle! BUILD SUCCESSFUL (total time: 9 seconds) 1 run: Enter first side length: 4 Enter second side lengLh: 5 The area of this triangle iu: The area of this triangle is: 0 BUILD SUCCESSFUL (total time: 11 seconds)

Explanation / Answer

import java.io.Console;

public class Test {
   public static void main(String args[]){
       Console cnsl = System.console();
       int a = 0, b = 0, c = 0;
       if(cnsl != null){
           String x, y, z;
           x = cnsl.readLine("Enter first side length: ");
           y = cnsl.readLine("Enter second side length: ");
           z = cnsl.readLine("Enter third side length: ");
           a = Integer.parseInt(x);
           b = Integer.parseInt(y);
           c = Integer.parseInt(z);
       }
      
       if(a + b >= c && b + c >= a && a + c >= b){
           double s = (a + b + c) / 2.0;
           double area = Math.sqrt(s * (s - a) * (s - b) * (s - c));
           System.out.println("The area of this triangle is: " + area);
       }
       else{
           System.out.println("These sides cannot make a triangle!");
       }
   }
}

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