Given an application program where it shares a variable X for its tasks' execution, one of the program tasks calls Add method to add value to the variable X. Before the new value of X is saved, another task of the program calls Subtract method to subtract value from the shared variable X. This can cause race condition and arrive incorrect value of the shared variable X. Discover and explain what can be added to this application program in order to prevent race condition from occurring.

The Factory method design pattern is useful since it can be used to create new objects of a particular type dynamically. True False

In this case, the calling component makes assumptions about the behavior of the called component that are either erroneous a.False or true b.False

2. Write a test program that creates a Faculty object with Id 123, Name Asma and department Business and display the Id, Name, department, and Whether the department is IT or not. Sample Output: 123 Asma Business false lick Save and Submit to save and submit. Click Save All Answers to save all answers

please use java to answer the following question Implement a program with a GUI and Action listener that looks like the one shown below You should connect to the database ( make sure you have maximum 5 rows in your table)   The table should contain of the name, card number and the pin number of the customers who uses the ATM   once you enter the card number and the pin number that exist in the database, then by clicking on the Login button, you could show a dialogue dialog box in which it shows the name of the customer and then indicates that that name is login successfully ( Mehrnaz is login successfully). Otherwise, the dialogue box indicates that the information does not exist in the database.   The clear button will clear all the information on the GUI.

in visual c# (windows form app) no console or Console.WriteLine Design a non-static method that can be contained within an... Design a non-static method that can be contained within an instance/object of the MyCallback delegate type. This method should display values of two data fields contained within the object that is passed to the method. Make-up your own method definition that meets these requirements.

write a software that creates an object of that type. Insert data into that object, and then use of the algorithms available for that type to manipulate it. Write a short description of the data type you used, of the method you used to insert data into the object, and of the algorithm that you used. Finally, describe a different algorithm that you could have used to manipulate your object, and indicate a situation where that algorithm could be useful.

What happens if the programmer removes the member function getBalance (), and instead substitutes it with sac. getBalance() in conjunction with sac.balance inside the displayBalance instruction? Why? You will need to make the appropriate adjustments to the application so that it can continue to run once these changes have been made.

As the first step in writing an application for the local book store, we will design and implement a Book class that will define the data structure of the application. Each book has a name, author, type (paperback, hardback, magazine), integer ID and pageCount. Provide some data validation in the appropriate method to ensure that the ID and pageCount are not negative. Design and implement a Book class with separation, i.e., separate all functions and methods into both the prototype and an implementation below the main.  Provide constructor methods for Book(void), Book(name, author), and one for all components Book(name, author, type, ID, pageCount) Provide accessor (get and set) methods for each property as well as a display method. Provide data validation for the ID and pageCount in the appropriate methods. Provide a method to calculate the cost for buying books (with a 7.75% sales tax) according to the following chart:     Hardcover:        $29.95 per book    Paperback:…

Solve using OOP in Java.