Assignment #92 and HeronsFormula

Code

        /// Name: Jason Kim
        /// Period: 7
        /// Program Name: HeronsFormula
        /// File Name: HeronsFormula.java
        /// Date Finished:12/9/15
        
        public class HeronsFormula
        {
        	public static void main( String[] args )
        	{
        		double a;
        		
        		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 triangle with sides 9,9,9, has an area of " + triangleArea(9, 9, 9));
                //It is easy to add a line.
        	}
         
        	public static double triangleArea( int a, int b, int c )
        	{
        		// the code in this function 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
        	}
        }
        
        //They produce the same output.
        //w/ function: 30 lines, w/o function: 50 lines
        //It is easier to fix a bug in a code that uses function.

    

Picture of the output