ChargeClient.java

/*************************************************************************
 *  Compilation:  javac ChargeClient.java
 *  Execution:    java ChargeClient x y
 *
 *************************************************************************/

public class ChargeClient {

    public static void main(String[] args) {
        double x = Double.parseDouble(args[0]);
        double y = Double.parseDouble(args[1]);
        Charge c1 = new Charge(.51, .63, 21.3);
        Charge c2 = new Charge(.13, .94, 81.9);
        System.out.println(c1);
        System.out.println(c2);
        double v1 = c1.potentialAt(x, y);
        double v2 = c2.potentialAt(x, y);
        StdOut.println(v1+v2);
        StdOut.printf("%.2E\n", v1+v2);
    }
}