Assignment = Heron's Formula

Code

  /// Name: Sam Wilson
  /// Period: 6
  /// Program Name: Herons Formula
  /// File Name: herons1.java
  /// Date Finished: 3/6/16
 
  
  public class herons1
  {
  	public static void main( String[] args )
  	{
  		double a;
          
          //they run the same thing.
          //herons1 has 30 lines herons2 has 50
          // this one
          //this one
  		
  		a = triangleArea(3, 3, 3);
  		System.out.println("A triangle with sides 3,3,3 has an area of " + a );
  
  		a = triangleArea(3, 4, 5);
  		System.out.println("A triangle with sides 3,4,5 has an area of " + a );
   
  		a = triangleArea(7, 8, 9);
  		System.out.println("A triangle with sides 7,8,9 has an area of " + a );
  
  		System.out.println("A triangle with sides 5,12,13 has an area of " + triangleArea(5, 12, 13) );
  		System.out.println("A triangle with sides 10,9,11 has an area of " + triangleArea(10, 9, 11) );
  		System.out.println("A triangle with sides 8,15,17 has an area of " + triangleArea(8, 15, 17) );
          System.out.println("A traingle with sides 9,9,9 has an area of "+ triangleArea(9, 9, 9) );
  	}
   
  	public static double triangleArea( int a, int b, int c )
  	{
  		// the code in this method computes the area of a triangle whose sides have lengths a, b, and c
  		double s, A;
  
  		s = (a+b+c) / 2.0;
  		A = Math.sqrt( s*(s-a)*(s-b)*(s-c) );
  
  		return A;
  		// ^ after computing the area, "return" it
  	}
  }



    

Picture of the output