Assignemnt #92

Code

/// Name: Justin Li
/// Period: 7
/// Program Name: HeronsFormula
/// File Name: HeronsFormula.java
/// Date Completed: 3/1/16

 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) );
    	}
     
    	public static double triangleArea( int a, int b, int c ) {
    		double s, A;
    
    		s = (a+b+c) / 2.0;
    		A = Math.sqrt( s*(s-a)*(s-b)*(s-c) );
    
    		return A;
    	}
    }

    

Picture of the output