title: calculate area of triangle given 3 user defined points -Beginner
body: <p>I can get my code to compile, but it doesn't produce the area that is desired.  I'm not sure where I have stumbled.  </p>
  
  <p>They want you to have the user enter 6 coordinates (x and y value) for the 3 points of a triangle and get the area.  My code is as follows:</p>
  
  <pre><code>import java.util.Scanner;
  
  public class AreaTriangle {
      // find the area of a triangle
      public static void main (String [] args) {
          double side1 = 0;
          double side2 = 0;
          double side3 = 0;
  
          Scanner input = new Scanner(System.in);
  
          //obtain three points for a triangle
          System.out.print("Enter three points for a triangle (x and y intercept): ");
          double side1x  = input.nextDouble();
          double side1y  = input.nextDouble();
          double side2x  = input.nextDouble();
          double side2y  = input.nextDouble();
          double side3x  = input.nextDouble();
          double side3y  = input.nextDouble();
  
          //find length of sides of triangle
          side1 = Math.pow(Math.pow((side2x - side1x), 2) + Math.pow((side2y - side1y), 2) * .05, side1);
          side2 = Math.pow(Math.pow((side3x - side2x), 2) + Math.pow((side3y - side2y), 2) * .05, side2);
          side3 = Math.pow(Math.pow((side1x - side3x), 2) + Math.pow((side1y - side3y), 2) * .05, side3);
  
          double s = (side1 + side2 + side3) / 2;
  
          double area = Math.sqrt(s * (s - side1) * (s - side2) * (s-side3)) * 0.5;
  
          System.out.println("area" + area);
      }
  }
  </code></pre>