Java(TM) Boutique - Tutorial - Encapsulating Algorithms with the Template Method Design Pattern

Listing 3. The IntegrationApp Class: The Client Application

public class IntegrationApp
	{
	public static void main(String[] args)
		{
		if(args.length < 3)
			{
			System.out.println("Usage: Integration a b n");
			System.exit(1);
			}
		double a = Double.parseDouble(args[0]);
		double b = Double.parseDouble(args[1]);
		int n = Integer.parseInt(args[2]);
		String function = "f(x) = sin(x)";
		System.out.println("-- Numerical Integration --");
		System.out.println("Function: " + function);
		System.out.println("a = " + a);
		System.out.println("b = " + b);
		System.out.println("n = " + n);
		TrapezoidRule trapezoid = new TrapezoidRule(a,b,n);
		System.out.println("Trapezoid Rule: area = " + trapezoid.integrate());
		SimpsonsRule simpsons = new SimpsonsRule(a,b,n);
		System.out.println("Simpson's Rule: area = " + simpsons.integrate());
		}
	}

Applet Index
(sorted alphabetically)
A B C D E F G H I J K
L M N O P Q R S T U
V W X Y Z #s

The Java Source
(applets w/source code)
A B C D E F G H I J K
L M N O P Q R S T U
V W X Y Z

How to Add Java Applets to Your Site

New on the Java Boutique:

New Review:

Time Management Made Easy with the Quartz Enterprise Job Scheduler
Why not just use the Java timer API? This open source scheduling API boasts simplicity, ease-of-integration, a well-rounded feature set, and it's free!

New Applet:

Reverse Complement
Reverse Complement is a simple applet that converts DNA or RNA sequences into three useful formats.