APCS2012_C5X1_QuadTester.java

/*
QuadTester.java     MrG     2012.1024
purpose:    solve quadratic equations using the quadratic formula
required files: QuadTester.java             main class
        Quad.java               derived class
translator: javac QuadTester.java
interpreter:    java QuadTester a b c
*/

//main class
public class QuadTester
{
    public static void main(String[] args)
    {
        double a = Double.parseDouble(args[0]);
        double b = Double.parseDouble(args[1]);
        double c = Double.parseDouble(args[2]);

        Quad leslie = new Quad(a,b,c);

        System.out.println("disc = " + leslie.disc());
        if(leslie.disc()>=0)
        {
            System.out.println("root1 = " + leslie.root1());
            System.out.println("root2 = " + leslie.root2());
        }
        else
        {
            System.out.println("root1 = " + leslie.real() + "+" + leslie.imag() + "i");
            System.out.println("root1 = " + leslie.real() + "-" + leslie.imag() + "i");
        }
    }
}