is an ordered *.collection of objects relation set non of them O
Q: has two relations ch a is the primary is the primary key nce of P has 70 Tup s 42. What is the m in…
A:
Q: recurrence relation Un
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Q: Reentrancy
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Q: Let S be a set with |S| = 5. How many relations are there on S? А. 5! В. 55 С. 520 D. 525 Е. 225
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Q: Give Pros of Using Dynamic Views
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A: Answer: I have done code and also I have attached code and code screenshot as well as output
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Q: R = ABCD F3{C-D, C-А, В -С } A. Find all candidate keys. B. What is the strongest normal form that…
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A: Given relational schema is R(A,B,C,D,E,H) Functional dependencies A→B,BC→D,E→C,D→A Candidate key…
Q: If a set A has 7 elements, then the total number of possible relations on A is O 27 27 277 72
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Q: QUESTION 7 Given S is a set of equivalence classes S={q, t, u, v, w} in relation R. S1={q,t,u} S2=…
A: - We have to check for S if it's a partition or not.
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A: In the functional dependencies above E, H are not present at the right hand side hence a candidate…
Q: In the recurrence relation f(n)=af(n/b)+g(n), the number of subproblems is a. True False
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Q: What are thescenarios where deadlock can occur specify each?
A: Deadlock will be arise when the below given condition are being fulfilled:
Q: Consider a relational scheme R(A,B,C,D,E,H)R(A,B,C,D,E,H) and functional dependencies…
A: The Answer is
Q: Suppose we define a relation on the set {strings in A} by making aRb + length(a) = length(b) Support…
A: Let first understand what is Equivalence relations ? A relation on set A is called an equivalence…
Q: Given the schema S= , where F represents the following dependencies: AB→D A→D E→B B→H H→C E→C…
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Q: Let A is a set defined as A= {1,2,3,4} and R is a relation on A, R is: * O neither equivalent nor…
A: Let A is a set defined as A= (1,2,3,4) and R is a relation onA, Ris: * neither equivalent nor…
Q: Consider a view v whose definition references only relation r If a user is granted select…
A: Suppose if a view references to only the relation r, then it is not necessary for a user to have…
Q: Minimal Superkeys are called Candidate keys explain?
A: Given that, Minimal Superkeys are called Candidate keys.
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A: The Answer is in step-2.
Q: Consider the following database in Prolog: birthday(tom). birthday(fred). birthday(helen),…
A: Here I explained Prolog code with proper output. I hope you like it. Use Swish Online Prolog…
Q: Suppose R(A,B,C,D,E) and we have the functional dependencies F= { A->C, C->D, B->C, DE->C, CE->A }
A: Functional Dependency A functional dependency A->B in a relation holds if two tuples having same…
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- Write the definitions of the member functions of the classes arrayListType and unorderedArrayListType that are not given in this chapter. The specific methods that need to be implemented are listed below. Implement the following methods in arrayListType.h: isEmpty isFull listSize maxListSize clearList Copy constructor Implement the following method in unorderedArrayListType.h insertAt Also, write a program (in main.cpp) to test your function.please help This class describes a tweet. A tweet has a message in it, a unique ID,* a count of the number of likes, and a count of the number of times it* has been retweeted. In addition, the Tweet class will have a static * variable to count the total number of tweets to ever be created * (retweets don't count as a new tweet).* * You may NOT import any library class.* **/public class Tweet {EclipseIDE - Java Programming assigment For your program: Create a data class named Automobile that implements the Comparable interface. Give the class data fields for make, model, year, and price. Then add a constructor, all getters, a toString method that shows all attribute values, and implement Comparable by using the year as the criterion for comparing instances. Write a program named TestAutos that creates an ArrayList of five or six Automobiles. Use a for loop to display the elements in the ArrayList. Sort the Arraylist of autos by year with Collections.sort(). Finally, use a foreach loop to display the ArrayList sorted by year.
- Use NetBeans Note for all the above User-Defined Classes: • Provide appropriate validation code so the right values get populated in the instance variables. For example, the payrate should not be negative. Write a Java application (Client) program with a static method called generateEmployees( ) that returns a random list of 10 different types of Employee objects. You would use an ArrayList to store the employee objects that will be returned. Use a for loop to populate randomly different types of employee objects with some random data. You could possibly think of a range of values like 1 – 4. If random value is 1, create a HourlyEmployee object with some randomly generated data, if 2, a SalariedEmployee object with some random data and so on. I would leave it to your ingenuity to generate and populate these different Employee objects with other data like name etc. As these objects are generated, add them to your data structure (array or ArrayList that you are using). Finally, the…Java Programming Class Car Attributes (all private): vin: String (5 digits) make: String model: String year: int price: double Methods: Parameterized constructor for initializing a new Car instance Getters for all attributes toString method to display a Car's attributes Executable Class Create an array of at least ten Car objects. Be sure to use many with identical last years and different prices. Create an ArrayList from the array. Shuffle the ArrayList. Sort the ArrayList first by year and then by price. See page 790-791. Using the forEach method and a lambda expression, print all cars sorted as above. Create a LinkedList from the ArrayList. Create an iterator capable of cycling both forward and backward through the LinkedList. Iterate forward through the entire LinkedList but without generating any output. Then iterate backwards through the LinkedList to print the cars data.Java Programming assigment For your program: Create a data class named Automobile that implements the Comparable interface. Give the class data fields for make, model, year, and price. Then add a constructor, all getters, a toString method that shows all attribute values, and implement Comparable by using the year as the criterion for comparing instances. Write a program named TestAutos that creates an ArrayList of five or six Automobiles. Use a for loop to display the elements in the ArrayList. Sort the Arraylist of autos by year with Collections.sort(). Finally, use a foreach loop to display the ArrayList sorted by year.
- Create a class called integerset. A set is represented initially as anarray of ones and zeros. a[i] is 1 if integer number i is in the set,and 0 if the integer number i is not in the set.An object is instantiated by passing to the constructor an integerrepresenting the range of the set.For a set of integers from 0 to 99 is instantiated asintegerset set(100);the default constructor is used also. An array containing theappropriate number of elements is allocated dynamically andinitialized by the constructor.Provide Public member functions for the common set operations(union – intersection), print a set as a list of numbers separated byspaces, Print --- for empty set, equalto member function thatdetermine if two sets are equal in elements, and final lessthanmember function that determine the set is less than other set in theelements.Include any additional operations that you think would be useful fora complex number classComputer Science You are required to develop a small chatting application where two or more friends can communicate each other through messages. Create a class Message which has Date d, and message (string). Provide getters/setters, constructors, toString. Create a class Friend having String name, String contact, email and ArrayList of Messages provide getters/setters, constructors, toString addMessage(Message m) method which will add new message to the list. Provide following options to the user using JFrame. Login which will help user login to the application. View Friends (Display List of All Friends) View Messages ( This should display all message of a Friend) Send message (This should ask for friend name and message match the friend name and write that message to the array list).Lab 10 Using an interface to share methods It is often the case that two or more classes share a common set of methods. For programming purposes we might wish to treat the objects of those classes in a similar way by invoking some of their common routines.For example, the Dog and Cat classes listed below agree on the void method speak. Because Dog and Cat objects have the ability to “speak,” it is natural to think of putting both types of objects in an ArrayList and invoking speak on every object in the list. Is this possible? Certainly we could create an ArrayList of Dog that would hold all the Dog objects, but can we then add a Cat object to an ArrayList of Dog?Try running the main program below as it is written. Run it a second time after uncommenting the line that instantiates a Cat object and tries to add it to the ArrayList. import java.util.*;public class AnimalRunner{ public static void main(String[] args) { ArrayList<Dog> dogcatList = new ArrayList<Dog>();…
- Design the PartnerAssignment class that contains: Two String arrays as attributes. A constructor which takes the text file name as parameter and fill the first array withthe first row of names and the second array with the second row of names in the file. A method checkPartnerAssignment that determines if the assignment of partners iscorrect or incorrect and this method returns a string valueJava Program The assignment requires two classes. Put all classes in the same package. Class Employee Attributes (all private): id: String lastName: String firstName: String salary: int Methods: Parameterized constructor for initializing a new Employee instance Getters for all attributes toString method to display an Employee's attributes (See output of executable below) Executable Class Create an array of at least eight Employee objects. Be sure to use many with identical last names, but don't order them by name in the array. Create an ArrayList from the array. Sort the ArrayList first by last name and then by first name. Using the forEach method and a lambda expression, print all employees alphabetically sorted by name. Create a LinkedList from the ArrayList. Create an iterator capable of cycling both forward and backward through the LinkedList. Iterate forward through the LinkedList without generating any output. Then iterate backwards through the LinkedList to print…Create a class called integerset. A set is represented initially asan array of ones and zeros. a[i] is 1 if integer number i is in the set,and 0 if the integer number i is not in the set.An object is instantiated by passing to the constructor an integerrepresenting the range of the set.For a set of integers from 0 to 19 is instantiated asintegerset a(20); the default constructor is used also. An arraycontaining the appropriate number of elements is allocateddynamically and initialized by the constructor.Provide Public member functions for the common set operations(union – intersection), print a set as a list of numbers separated byspaces, Print --- for empty set, equalto member function thatdetermine if two sets are equal in elements, and final lessthanmember function that determine the set is less than other set in theelements.Include any additional operations that you think would be useful fora complex number class.
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