# 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