Java HTTPServer's new handlers

myHandler.java

//
// Option One.
//

import httpserver.*;

public class myHandler extends HTTPHandler {

    public myHandler() throws HTTPException {
        addGET("/showHeaders", "showHeaders");
        addGET("/hello", "sayHello");
        addGET("/hello/{String}", "sayHello");
        addGET("/hello/{String}/{String}", "sayHello");

        // the `*` says optionally. Only okay to have the last parameter be
        // a star.
        addGET("/thisAndMore/{*String...}", "thisAndMore");
    }

    public void showHeaders(HTTPResponse resp, HTTPRequest req) {
        StringBuilder builder = new StringBuilder();
        for (String key: req.getHeaders().keySet()) {
            builder.append(key);
            builder.append(": ");
            builder.append(req.getHeaders().get(key));
            builder.append("\n\n");
        }
        
        resp.setBody("Headers: \n\n" + builder.toString());
    }

    public void sayHello(HTTPResponse resp) {
        resp.setBody("Hello World!");
    }

    public void sayHello(HTTPResponse resp, String name) {
        resp.setBody("Hello " + name + "!");
    }

    public void sayHello(HTTPResponse resp, String first, String last) {
        resp.setBody("Hello " + first + " " + last + "!");
    }

    public void thisAndMore(HTTPResponse resp, String... paths) {
        StringBuilder b = new StringBuilder();
        for (String p: paths) {
            b.append("/");
            b.append(p);
        }
        resp.setBody("You requested `" + b.toString() + "`");
    }
}