Assignment 1

CS476/576

Assignment #5

Due Midnight, Wednesday Dec. 3, 2003

Write a Java/swing program with the following descriptions:

NAME

cascade - A Java program with a swing interface that creates/terminates a set of tcp-connected threads.

SYNOPSIS

java cascade

DESCRIPTION

The program creates n > 1 threads. Thread i creates thread i+1, for i=1, 2, ...n-1. Therefore, thread i is considered the parent of thread i+1 and thread i+1 is considered the child of thread i, for i=1, 2,..., n-1. Each thread is connected to its next thread with a tcp socket.

If thread i is terminated then all other n-1 threads will be terminated. Therefore terminating any thread will have a cascading effect on all other threads.

Program Interface:

You have the complete freedom of designing your own SWING interface.
However, each interface must have the following features:

The user should be able to specify the number of threads.
Each thread should identify itself upon its creation, e.g.,

Thread i STARTED: Parent Port x, Child Port y

The user should be able to select/specify the thread to be terminated*.
Each thread should identify the reason of its termination, e.g.,

Thread i TERMINATED: reason

where reason can be one of three values: self/parent/child.

* For CS476 students: You may not implement this option, you may always terminate the first or the last thread.

Extra Credit: If you implement this program as Applet & Application, you will get +2
(cs576 students) or +3 (cs476 students).