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- give An watcher pattern could be an application that notifies the user when the equity price of a particular company changes.and explain the benefits of using the watcher pattern in session design patterngive An watcher pattern could be an application that notifies the user when the equity price of a particular company changes.and explain the benefits of using the watcher pattern in session design patterngive An watcher pattern could be an application that notifies the user when the equity price of a particular company changes.and explain the benefits of using the watcher pattern in session design patternI do not want the solution on paper, I want the solution in text, pleaseWrite a java program to create a class named ReverServer. A ReverServer listens on port 1099 for incoming connections from client programs. When ReverServer connects to a client it reads one line of text at a time from the client, reverses the characters in the text line, and sends them back to the client.I have an attendance checker system wherein each employee will click a "time in" button when they start working and "time out" during breaks or at the end of the day. I have the following employees: Luna, Dino, and Chuck. Please make a JAVA code that will allow the server to view the status of each employee (either working or on break).
- You are to develop a C++ code for an airline’s online ticket booking system. The codeshould be user-friendly to allow the customer to easily initiate a new booking, view his existingbooking, or cancel it. On the other hand, the code also allows the airline managers to add orupdate information on available flights, and perform other clerical tasks (like checking thenumber of bookings, passenger information, etc.). For simplicity, the code does not need toimplement the functionality of a payment (just entering the PAY string is enough).The problem is very open- ended, meaning you can use any of the concepts learnt in the courseto implement different additional functionalities to your code (and earn bonus points!).Use concepts like class inheritance, friend classes, constructors, private data, arrays, etc to addbetter structure to your code. For example, your definitions of Manager and Customer class caninherit from a Person class.The code should fulfill the following functionalities:…A c++ code for a shopping mall, The parking garage contains a single lane that holds up to 50vehicles. However, first 10 locations are dedicated to some customers. For the remaining parking places, there is only a single entrance/exit to the garage. If a customer arrives to pick up a vehicle and it is not nearest the exit, all vehicles blocking its path are moved out. The customer’s vehicle is driven out and the other vehicles are restored in the sameorder as they were in original.ps (when followed by the -e is required) shows only processes that are not connected with the terminal, you can use the -f switch to see the other processes Factual or fiction?explain briefly?
- In remote procedure call, the client program must be bound with a small library procedure called ................... a. Server stub b. Marshalling c. Client hub d. Client stubI need a help with my python activity. This requires 2 clients and 1 server. This is a system to support an online math contest. Rule: There are two participants answering at the same time. The host is responsible in starting up the server, after that they wait for the clients. When the two clients are connected, they must send the message: READY to the server. When the server receives the two READY from the clients, the contest starts. The server will display 3 questions one after another which can be answered in 30 secs each. 11+10 = 21 10+22 = 32 10+10 = 20 The participant with most correct answers wins. At the end of the program, the server must show the results. ex: Client1 WINS! 2/3 Client2: 1/3Which of the caller or callee saves execution status information?
- Which of the following statements is true of Verilog? a. Verilog is an HDL that orginated in 1985 at a company called Gateway Design Automation b. Verilog is an HDL that was first published in 1987 as an IEEE standard c. Verilog was developed at the behest of the U.S. Dept. of Defense d. Verilog's syntax is borrowed largely from Ada, an earlier DoD languageYou get a job working for the Cerulean City Gym. A previous coder group implemented a client-server program where multiple clients would send message to the server using a single pipe. It worked quite well for years. Now, the requirements have changed and a different group of programmers came in and made some changes. Now, the data being received at the server end is now garbled. The new programmers weren't able to resolve the issue keeping to the original pipe design. Discarding the pipe approach, how would you fix this situation? Based on what you've learned in class, what IPC method would you use to fix this situation?Use the code below to answer the questions: - Open a second terminal and send it a signal that invalidates the while() loop condition -What command did you use in the second terminal? Here is the code: #include <stdio.h>#include <stdlib.h>#include <unistd.h>#include <errno.h>#include <signal.h> volatile sig_atomic_t got_usr1; void sigusr1_handler(int sig){ (void)sig; // silence unused variable warning got_usr1 = 1;} int main(void){ struct sigaction sa; got_usr1 = 0; sa.sa_handler = sigusr1_handler; sa.sa_flags = 0; sigemptyset(&sa.sa_mask); if (sigaction(SIGUSR1, &sa, NULL) == -1) { perror("sigaction"); exit(1); } while (!got_usr1) { printf("PID %d: working hard...\n", getpid()); sleep(1); } printf("Done in by SIGUSR1!\n"); return 0;}
