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- For the given design, Which of the following is NOT true about the design? Select one: a. It supports modular design. b. The AuthenticateUser sequence diagram can be reused only after a doB message call. c. The AuthenticateUser sequence diagram can be reused only when the authenticate() message is invoked on a B object. d. The DoFoo sequence diagram can be reused in any context where a B object and a C object are involved. e. The doB message must be called after the doA message.We wish to implement a system that allows the management of Employees and Students. As a first step. you need to implement the above UML diagrams Notes: . ZOOM . PERSON, EMPLOYEE and STUDENT should be public static constants The no-arg constructor will initialize ID, firstName and lastName to their respective null values. It will set personType to PERSON, and sortorder to LAST_NAME The overloaded constructor will assign each parameter to its respective field. sortorder will also be set to LAST_NAME toString() will output type, ID, firstName and lastName, all tab separated. This is an override method equals() will compare if the current object and the parameter contain the same values. This is an override method compareTo() compares the current object and the parameter. This is an override method. It will be used to sort objects Needs the Comparable interface O Will only compare fields depending on the sortorder. For example, if the sortorder is TYPE, it should then compare the…Compute the weakest precondition for the following assignment. a = 2 * (b - 1) - 1{a > 0}
- Design a calculator in netbeans with two text boxes and implement the functionality of+, -, * and /.• Similarly modify the logic to use single text field for calculations.• Call the functions of Calculator class to provide the functionality.Given the following: nale(P). female(P). father of (F,C). mother of (M,C). parent of (P,C):- father_of (P, C); mother_of (P, C). grandparent of (G, C): parent_of (G, X), parent of (X, C). Select the lines of code to build the rule for has sister which has one person as a parameter, which returns true if a sister for that person is found. \= means NOT EQUAL | Select ] (Select has sister(x- has sister(X) has sister(X) has sister(X): Select] ( Select) Given the following: male(P). female(P). father of (F,C). mother of (M,C). parent of (P,C):- father of (P, C); mother_of (P, C). grandparent of (G, C):- parent of (G, X), parent of(X, C). Select the lines of code to build the rule for has sister which haş one person as a parameter, which returns true if a sister for that person is found. \= means NOT EQUAL | Select ] Select [Select female(Y). female(X). X\-Y, [Select|Please use java Part 2. Library Class Implement a class, Library, as described in the class diagram below. Library must implement the Comparable interface. The compareTo() method must compare the branch names and only the branch names. The comparison must be case insensitive. The equals() method must compare the branch names and only the branch names. The comparison must be case insensitive. Be sure to test the equals() and compareTo() methods before proceeding. Library - state: String - branch: String - city: String - zip: String - county: String - int squareFeet: int - int hoursOpen: int - int weeksOpen: int + Library(state: String, branch: String, city: String, zip: String, county: String, squareFeet: int, hoursOpen: int, weeksOpen: int) + getState(): String + getBranch(): String + getCity(): String + getZip(): String + getCounty(): String + getSquareFeet(): int + getHoursOpen(): int + getWeeksOpen(): int + setState(state: String): void + setBranch(branch:…
- Which statement about internal iterators is NOT true? Group of answer choices 1. Internal iterators require less code than an external one. 2. The Map higher order function works with an internal iterator. 3. Internal iterators generally support fewer operations than an external iterator. 4. It gives us more control than with an external iteratorQuestion 4 For this question, let's combine ADTS and dictionaries! Let's try to make an ADT that represents a politician. The politician ADT has a constructor make_politician. There are three selectors, get_name, get_party, and get_age. When implementing an ADT, you have the freedom to choose how you want to represent it. Some common data structures used to represent ADTs are lists and dictionaries. The city ADT was implemented using a list. Now, let's use dictionaries to implement our politician ADT. You must use a dictionary for this question, or else you will not pass the tests.Explain why it is better to have accessors for private types rather than public types in no more than three sentences.
- Match the Design Pattern with its description. Client code picks which set of behaviors it wants to use in certain situations. 1. Strategy Pattern Client code can do part of an algorithm, but not all of it; allows calling code to specify behavior. 2. Observer pattern 3. State pattern Client code is notified when an event occurs on a subject. >Make sure you are aware of the differences between generic and acceptability testing.What makes static testing distinct from dynamic testing?There is a difference between generic testing and acceptability testing, and you should be aware of this difference. What exactly are some of the key differences between dynamic testing and static testing?