Module 4 Journal Entry

Lab Manual 223CCS-3 Advanced Object Oriented Programming Laboratory 11 Networking and threads Cont... Objective: Creation of a chat application using networking and threads. Activity Outcomes: This lab teaches you the following topics: Combining two concepts, Threads and Networking, in one java application Lab Activities: Based on the previous lab on networking, write a program corresponding to a chat application where a server and a client will communicate through a TCP connection. Note that in a chatting application, every side of the connection can send messages at any time and the other side will receive and display it. To do this, we need two thread classes, one for writing in the socket and the other for reading from it. These two threads will be executed together by both the client and the server. Thus, you have to develop the following classes: Two thread classes. The first one, called SenderThread, will be used to send messages to the other side through a socket infinitely…

Write a Java program using Thread with single Server and Multiple Clients NOTE: Client must be running until Bye message is sent. Server should never stop I need answer question pls

This is an application required to be completed on NetBeans apache 12.5 (Java)

Q2:A company supplies a Tax Returns Automation process to its clients, visiting their sites andinspecting their revenues for a given year, giving advice and completing the necessary formsfor Tax Returns purposes. Once the forms have been completed, they are saved as papercopies; one is kept by the client, the other is filed locally within the company’s paper-basedarchives. The corresponding electronic copies are also saved in a word-processor format andsaved on a local computer.The company is seeking to develop a more fully automated process: the tax consultantvisiting the client's premises periodically would log-in to an on-line application (within thecompany website) and input the data to an on-line form. The data collected would be usedto keep the clients informed of the results of the consultant’s visits and the date of the nextvisit.Considering the above scenario:a) List and describe at least THREE possible risks that the company will be likely to facewhen the new more…

data comunication A program for communication between server and client will be developed. Multiclients (more than 1 client) can communicate with server simultaneously. While a client communication with the server, another clients should communicate with the server. The communication should be seen in consoles. TCP protocol will be used.. Thread functions should be used for the simultaneous communication

Write a Java program using Thread with single Server and Multiple Clients NOTE: Client must be running until Bye message is sent. Server should never stop I need answer question pls one server two client

Dynamic scoping: What is it, when does it work, and how can it be made to work even better than before?

What is the concept of "overcommitting" in a virtual environment?

Dynamic scoping: what is it, when is it used, and how can it be optimized?

data flow diagram

Socket programming The application consists of two parts: Server and Client. Each part can run independently on separate computers. Server manages the chat session. It maintains a list of the active clients and forwards incoming messages. The Server is multithreaded - communication with each client is through a separate thread. When Server is started, it starts to wait for client connections. This thread continues forever to listen for clients. When a connection request is received, the server starts a thread to service the client. This is necessary for each client to have its own socket. When the thread is started, a Client object is created containing all the relevant info about each client and saved in a list. The ServiceClient() thread is where all the work is done. ServiceClient() defines the implementation of the server side of the application protocol

a) Draw a well-labelled diagram to indicate the five states of a thread. In the drawing, indicate at least one method that can change the state of a previous state to the next state of the thread. b) Multithreading is one of the two ways that multitasking can be achieved. Using Java code snippets, describe two ways that a thread can be created. c) Describe the function that a Daemon thread in Java is assigned to, then using Java code snippet, create a thread using any of the two common ways and assign it to be a Daemon thread using the appropriate method.

In computer graphics when looking at synchronizations when building a renderer in engine development, what are moments where locks and unlocks from mutex's would not always work when looking at synchronization for a renderer in an engine?What I mean is when developing a game engine and you'll want there to be synchronization from a renderer thread and a main thread. Where renderer thread handles flushing and executing all of the concurrent tasks, whereas main thread would handle more of the querying tasks to a render command queue, and handling how these operations are operated within the engine.Can you give me some ideas on when mutex's may not be enough in a more complex? Where you may have multiple scenes, where animation physics are applied, and various vast ideas in this perspective?On another can you give me in great details what are uses of ref counters and different variations of implementations (in C++), and why reference counters are used? And what purpose do they have, as…

If a JVM's method area is global to all of the threads that are running in the environment of a virtual machine, why do you think this is the case?

How do handler interfaces manage resource allocation in environments with heterogeneous hardware components?

Multi-threading       A)  Write a Thread class (called worker) that takes two numbers (A and B, A < B) and calculates the products of all numbers between A and B. the result is stored in a local variable than can be accessed through a get method. B)  Write a main program to calculate the factorial of a given number n (). The main thread reads n from the user, then creates two instances of Worker. Each one is requested to calculate the half of numbers between 1 and n. Once they finish, the main thread will gather their results and print the final result (result1 x result2). Example when n=10

Java Programming 2/Mobile Device Programming 2) Threads are a relatively recent invention in the computer science world. Although processes, their larger parent, have been around for decades, threads have only recently been accepted into the mainstream. Perhaps the best example of threading is a WWW browser. Can your browser download an indefinite number of files and Web pages at once while still enabling you to continue browsing? While these pages are downloading, can your browser download all the pictures, sounds, and so forth in parallel, interleaving the fast and slow download times of multiple Internet servers? Discuss about this.

Explain the potential issues and best practices related to versioning when dealing with serialized objects.

Context: One operating system (Linux) treats processes and threads in the same way, allowing a task to be more akin to a process or a thread (as described in our text) depending on flags passed to the system call that creates it. Another operating system (Windows) treat processes and threads quite differently. The Process Control Block contains pointers to the separate threads belonging to the process.Question: Contrast these two approaches for modeling processes and threads within the kernel. What differences do the two approaches make? What are some consequences? (Operating system and concept )