int x = 0, y = 0; co x = x + 1; || y = y + 1; oc ▸ At most once property holds. int x = 0, y = 0; co x = y + 1; || y = y + 1; oc ▸ At most once property holds. int x = - 0, y = 0; co x = y + 1; || y = x + 1; oc ▸ At most once property does not hold. ?
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Please could you explain why at most once property hold for first 2 examples ,and not for third one.
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- ANSWER ONLY NO. 8 IN SENTENCE FORM Create a constructor named Exam that assigns "Good luck" to a previously declared String variable named message. Create an empty overloaded constructor for the Exam class with two (2) String parameters named period and level. Declare a double-type accessor named getPrice that returns the value of price. Declare a boolean-type accessor named isFinished that returns the value of status. Declare a class named Midterm that inherits from the class named Exam. Create three (3) class declarations to show multiple levels of inheritance. Use the classes named Exam, Midterm, and Essay. Create a constructor named Midterm that prints "Exam has started." using println(). Its first statement should be a call to a constructor in the parent class. Given the base class named Quiz and the derived class named Essay, write a statement to show inheritance between these classes.Which is an example of an abstract property? Question 15 options: public Student() { } public string Name { get { return _name; } set { _name = value; } } public string ID { get { return _id; } } public abstract double RequiredHours { get; }Find the error(s) in the following code: class mystery //Line 1{ //Line 2friend mystery operator<(const mystery& a,const mystery& b); //Line 3//Returns true if object a is less than//object b; otherwise it returns false....private: //Line 4double r; //Line 5}; //Line 6
- Any variable with more than one responsibility should be replaced with multiple variables, therefore, apply the following refactoring? Remove Middle Man Split Variable Extract Class Move FieldThe fields timesGet and timesAvoid should each influence either the score, or the game-over condition, or both. For example, maybe getting something good increases the score, hitting something bad decreases the score, and the game ends after a set amount of time. Or alternatively, maybe getting something good increases the score, and hitting a certain number of bad things ends the game. Or alternatively, maybe the score depends only on how long the user has stayed alive, and the user dies when they've hit more bad things than good things. There are many possibilities here. Complete the getScore method, which should return the current game score. In determining the score, you may use timesGet, timesAvoid, and msElapsed. Then modify updateTitle to show the title of your game. (You're welcome to show other statistics in the title, in addition to the score.) Test that the score now updates correctly, as you play your game and collide with images.Hello. Please help me complete the code. A picture of the problem statement has been provided, as well as the code to be completed and the driver code. Please make sure the test cases are passed. /** This class models a ball that bounces off walls.*/public class Ball{ // Instance variables /* Your code goes here */ /** Constructs a ball at (0, 0) traveling northeast. @param rightWall the position of the wall to the right @param topWall the position of the wall at the top */ public Ball(int rightWall, int topWall) { /* Your code goes here */ } /** Moves the ball. */ public void move() { /* Your code goes here */ } /** Turns the ball direction 90 degrees clockwise. */ private void turn() { /* Your code goes here */ } /** Gets the current x-position. @return the x-position */ public int getX() { /* Your code goes here */ } /** Gets the current y-position. @return…
- ANSWER ONLY NO. 8 AND EXPLAIN Create a constructor named Exam that assigns "Good luck" to a previously declared String variable named message. Create an empty overloaded constructor for the Exam class with two (2) String parameters named period and level. Declare a double-type accessor named getPrice that returns the value of price. Declare a boolean-type accessor named isFinished that returns the value of status. Declare a class named Midterm that inherits from the class named Exam. Create three (3) class declarations to show multiple levels of inheritance. Use the classes named Exam, Midterm, and Essay. Create a constructor named Midterm that prints "Exam has started." using println(). Its first statement should be a call to a constructor in the parent class. Given the base class named Quiz and the derived class named Essay, write a statement to show inheritance between these classes.Create a constructor named Exam that assigns "Good luck" to a previously declared String variable named message. Create an empty overloaded constructor for the Exam class with two (2) String parameters named period and level. Declare a double-type accessor named getPrice that returns the value of price. Declare a boolean-type accessor named isFinished that returns the value of status. Declare a class named Midterm that inherits from the class named Exam. Create three (3) class declarations to show multiple levels of inheritance. Use the classes named Exam, Midterm, and Essay. Create a constructor named Midterm that prints "Exam has started." using println(). Its first statement should be a call to a constructor in the parent class. Given the base class named Quiz and the derived class named Essay, write a statement to show inheritance between these classes.// TODOd: define "playerName" as a property var playerName = playerName get() = field // optional set(value) { field = value } // optional
- Write a class named Employee that has the following fields:• name. The name field references a String object that holds the employee’s name.• idNumber. The idNumber is an int variable that holds the employee’s ID number.• department. The department field references a String object that holds the name ofthe department where the employee works.• position. The position field references a String object that holds the employee’sjob title.The class should have the following constructors:• A constructor that accepts the following values as arguments and assigns them to theappropriate fields: employee’s name, employee’s ID number, department, andposition. • A constructor that accepts the following values as arguments and assigns them to theappropriate fields: employee’s name and ID number. The department and positionfields should be assigned an empty string (""). • A no-arg constructor that assigns empty strings ("") to the name, department, andposition fields, and 0 to the idNumber field.…Write a class called Alien. The Alien class must have one field of type String called name, one of type String called planet and one field of type boolean called humanoid. Write one constructor that takes three parameters to initialise all of these fields. The parameters must be passed in the order name, planet and humanoid status. IntelliJ hint (this won't be in the real test): put your cursor after the last field; right-click, choose Generate, choose Constructor, select the fields that are set via parameters and click Ok. Check that the constructor is correct. Write a getter method for each field. IntelliJ hint (this won't be in the real test): put your cursor after the closing curly bracket of the constructor; right click, choose Generate, choose Getter, select all of the fields; click Ok. Check that the you have three getters. Do not write setters methods. Write a method called getDetails that will return the values of the fields in one of the following two formats. For example,…Find the error in each of the following code segments: // Superclasspublic class Vehicle{private double cost;(Other methods . . .)}// Subclasspublic class Car extends Vehicle{public Car(double c){cost = c;}}
