多线程与并发处理是程序设计好坏优劣的重要课题

				public class Request {
				    private final String name;
				    public Request(String name) {
				        this.name = name;
				    }
				    public String getName() {
				        return name;
				    }
				    public String toString() {
				        return "[ Request " + name + " ]";
				    }
				}