// Try commenting in and out different lines below
// to see how Exceptions are handled.
public class ExceptionTest {

	// Exceptions are just instances of the Exception class
	// or any subclass... we can make our own Exception subclasses
	// for Exceptions specific to a particular application.
	public static class LocalException extends Exception {
		public LocalException(String msg) { super(msg); }
	}

	public static double A() throws Exception {
		return B();
	}

	public static double B() throws Exception {
		double return_val = 50d;
		try {
			return_val = C();
		} catch (LocalException e) {
			return_val = 100d;
			//throw e;
			//throw new Exception("Modified Exception: " + e.getMessage());
		} finally {
			System.out.println("Always printed!");
		}
		return return_val;
	}

	// Try each of the following three return statements
	public static double C() throws Exception {
		throw new Exception("ERROR");
		//throw new LocalException("ERROR");
		//return 1.0;
	}

	public static void main(String[] args) {
		double val = 3d;
		try {
			val = A();
			System.out.println("Main Value: " + val);
		} catch (Exception e) {
			System.out.println("Main Exception: " + e.getMessage());
		}
	}
}