Spark web framework and Tomcat

HelloWorld.java

package org.dev.artyprog;

import static spark.Spark.*;
import spark.Request;
import spark.servlet.SparkApplication;

public class HelloWorld implements SparkApplication {
   
	@Override
	public void init() {
		get("/hello", (req, res) -> "Hello");	
	        get("/hello/:name/:age", (req, res) -> greet(req));    	
	}
	
	public String greet(Request req) {
		return "Hello " + req.params().get(":name") + 
		       " you are " +  req.params().get(":age");	
	}
}