Assignemnt #92 HeronsFormula.java

Code

    /// Name: Luke Shin
    /// Period: 7
    /// Program Name: HeronsFormula
    /// File Name: HeronsFormula.java
    /// Date Finished: 3/28/2016
    
    import java.util.Random;

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 );
        
        a = triangleArea(9,9,9);
        System.out.println("A triangle with sides 9,9,9 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 8,15,17 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
	}
}

// The outputs are the same.
// 32 lines on HeronsFormula.java and 50 lines on HeronsForumlaNoMethod.java; 30 lines
// It was easier to fix the file with a method because you just have to fix one line
// It was easier to add one more test to the file with method.


        


   
    

Picture of the output