Java代写代考

CS 640 Introduction to Computer Networks Assignment 2 For this assignment, you will implement the forwarding behavior of a switch and a router. Recall that a switch forwards packets based on MAC address, and a router forwards packets based on IP address. Environment Setup Copyright By PowCoder代写 加微信 powcoder This will be the same set […]

Q1. a ———————————————————————————————————————————————— Class Name | Atomic or Compound ———————————————————————————————————————————————— BoolT | Atomic ———————————————————————————————————————————————— ErrorT | Atomic ———————————————————————————————————————————————— FuncT | Compund ———————————————————————————————————————————————— ListT | Compund ———————————————————————————————————————————————— NumT | Atomic ———————————————————————————————————————————————— PairT | Compund ———————————————————————————————————————————————— RefT | Compund ———————————————————————————————————————————————— StringT | Atomic ———————————————————————————————————————————————— UnitT | Atomic ———————————————————————————————————————————————— Q1 b. Term | Condition ———————————————————————————————————————————————————————————————————————————————————————————————— Program | When

package typelang; import java.util.List; public interface Type { public String tostring(); public boolean typeEqual(Type other); static class ErrorT implements Type { String _message; public ErrorT(String message) { _message = message; } public String tostring() { return “Type error: ” + _message; } public boolean typeEqual(Type other) { return other == this; } } static class

package typelang; import java.util.List; import typelang.Value.*; /** * Representation of an environment, which maps variables to values. * * @author hridesh * */ public interface Env { T get (String search_var); boolean isEmpty(); @SuppressWarnings(“serial”) static public class LookupException extends RuntimeException { LookupException(String message){ super(message); } } static public class EmptyEnv implements Env { public T