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- Language: C++ Explain your answer - True or False? If class A is a friend of class B, then class B is also a friend of class A.The questions should be completed with OCaml. Running screenshots should be provided. The background information is given by the picture. Question 1: Provide 5 good test cases each for eval_success_tests and eval_failure_tests, following the format of: let eval_success_tests : ((truth_assignment * formula) * bool) list = [] let eval_failure_tests : ((truth_assignment * formula) * exn) list = [] Question 2: Implement the function eval : truth_assignment -> formula -> bool. let eval (state : truth_assignment) (formula : formula) : bool = raise Not_implemented You are evaluating boolean formulae instead of float arithmetic. You also need to use the correct boolean value for each variable. We recommend using Variable_map.find_opt to perform lookups in the truth assignment. If a variable is needed but does not appear in the truth assignment, you must raise an Unassigned_variable x exception, where x is the unassigned variable. Once again, you may use any functions you want and…Determine the efficiency class of each of the following issues by designing a sufficiently efficient method.b. You have a file with n student records, each with a number, name, home address, and birth date. Determine the number of pupils from each of the 50 states in the United States.
- Fitt’slaw example?Provide a detailed explanation on the Class Diagram above.Answer the given question with a proper explanation and step-by-step solution. Using Java Create an BankAccount Class that has an account id number (of type integer), balance (of type double), and rate (of type double) as private data. Add get and set methods for these three variables to work with these attributes. Make overloaded constructors to bring in and set all values, and also to just to bring in a customer name and id which uses 0 for the balance. Include error handling in the set for the balance which throws an exception if a change would put the balance below 0. In Main of another class file create 2-3 objects of BankAccount and work with their values and output them to the user to test your new class. Take the BankAccount Class from above and copy it into this program. You will use it as one of the classes in this one. Create a BankCustomer class with 3 BankAccount objects inside it as private variables (of type BankAccount) as well as a customer name (of type String).…
- Using the Java language, write a definition for the PERSON class to represent a person's name and another variable to represent his age, and a constructor method that receives data values upon creation. The definition also includes change methods and retrieval methods for each variable of the class. In addition, the class definition contains a RESET method to change the value of both variables with new values that are received from during transactionsPLZ help with the following: IN JAVA Given the following code (where the function FunTest() and the main method are inside one class in the same file where classes X, Y and Z are), predict what is the output?Draw the Class and Object Diagrams using the following specification of the hotel reservation? 1. For the hotel guest - search available rooms - make a reservation (after registration). Up to 2 reservations are possible for each guest confirm reservation -cancel reservation-pay through credit card or bank transfer
- USE JAVA LANGUAGE to solve this problem Important:- Provide API documentation comments for your class(es), class constructor(s) and method(s) using the Javastandard form for documentation comments discussed in this course.- Use meaningful variable and constant namesAnswer this mcq 12) Java has a way of officially hiding details of a class definition. To hide details, you mark them as _________. public protected private all of the above AnswerGiven the following class diagram, interfaces and classes that model various kinds of animals. What will be the errors in the main method? For each error, indicate the line number of each incorrect statement and explain in one sentence why it is wrong.