Java) Which tag is used to indicate that a method is overriden from a parent class?
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(Java)
Which tag is used to indicate that a method is overriden from a parent class?
The given question is related to Java where we need to mention th tag that is used to indicate an overridden method from a parent class.
Below code illustrates the tag use.
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- (JAVA) What is code refactoring? Group of answer choices A)None of the options are correct. B) It is changing implementation of a method or constructor of a class, while leaving the declaration the same, allowing all users of that class to continue using the class without noticing the change. C)It is abstracting a class so that common elements with another class are moved into the abstract class that both classes extend. D) It is declaring all the methods that need to be supported in an interface. This guarantees that all classes implementing this interface will support those methods.make proper methods for setting and getting the attributes of the class Student. (Java) attributes: ID , full name, Semester Gender , AgeExplain in details Method Overloading and Method Overriding with examples, in java.
- (Person Class) Design a class named Person that contains: o name, gender, and personCase as a private attribute o Non-default constructor that specifies name and gender o toString method that returns person data o personCase () method with no implementation (Student Class) Design a class named Student which is a child of Person that contains: o studentID as a private attribute o Nondefault constructor that specifies the name, gender, and studentID o toString method that returns student data o Implement personCase () that assigns "Not Studying" to personCase if studentID equals 0, “Studying" in case studentID greater than 0, and "Not a student" in case studentID less than 0. (Employee Class) Design a class named Employee which is a child of Person that contains: o employeelD as a private attribute o Non-default constructor that specifies the name, gender, and employeelD o toString method that returns employee data o Implement personCase () that assign “Technical" to personCase if…Answer By True or False , JAVA LANGUAGE A Java interface can contain only constants and abstract methods. A class that implements an interface can define only the methods that are included in the interface. A static variable can be referenced only from a static method. Static variables are also called class variables.(The Time class) Design a class named Time. The class contains: - The data fields hour, minute, and second that represent a time. - A no-arg constructor that creates a Time object for the current time. (The values of the data fields will represent the current time.) -A constructor that constructs a Time object with a specified elapsed time since midnight, January 1, 1970, in milliseconds. (The values of the data fields will represent this time.) -A constructor that constructs a Time object with the specified hour, minute, and second. - Three getter methods for the data fields hour, minute, and second, respectively. -A method named setTime (long elapseTime) that sets a new time for the object using the elapsed time. For example, if the elapsed time is 555550000 milliseconds, the hour is 10, the minute is 19, and the second is 10. Draw the UML diagram for the class and then implement the class. Write a test program that creates two Time objects (using new Time (), new Time(555550000),…
- (JAVA) Create a class hierarchy to represent the different types of employees in an office who have the following job titles: manager, assistant, salesperson. Write an abstract base class called Employee that declares an abstract method: signature double calculateSalary() This class must also define the following attributes: name (String type), enrollment (String type) and base_salary (double type). Use encapsulation and provide a constructor that receives the corresponding values to be stored in the respective attributes. This abstract class must be extended by the other classes representing the types of employees, so the classes Manager, Assistant and Salesperson must be written. In each class you must override the method calculateSalario so that the salary calculation is done like this: The manager receives twice the base_salary, the assistant receives the base_salary and the salesperson receives the base_salary plus a commission defined in the constructor of his class. Create a…(Java) The Abstract Art Class Write an abstract class as follows: The class is named Art It inherits from the Comparable interface It has a private String member variable named name It has a private String member variable named artist It has a private int member variable called year It has a default constructor that assigns the values "No name" to name, "No artist" to artist and -1 to the year. This default constructor calls the three argument constructor. It has a three-argument constructor to assign values to the name, artist and year variables. It has a copy constructor that makes a copy of another non-null Art object It has getters and setters for the name, artist and year variables It has a toString() method that creates a string of artist, with name and year tabbed once on subsequent lines (see sample output) It has an equals method that compares this Art to another Object It has a compareTo method that compares in this order: 1) artist, 2) name, 3) year This class contains no…Do all please. (a) Provide an example of a constructor method being overridden? (b) Describe Dynamic Binding as related to Class loading? (c) What is the role of a class loader? (d) What are two benefits of the Bytecode verification system?
- JAVA PROGRAMMING (TRUE OR FALSE) No further explaination needed. Classes in the java·lang package may be used directly if they are imported first using an import statement(True/False) The fields and methods of a child/sub class are only those inherited from the parent/super class.(True/False) A reference/object of super class type can hold/assume any object of its sub class type.(True/False) An import statement is necessary to use/access a classin the same package.(True/False) A private data field is accessible only by other classes via the exposed methods of its class.(True/False)(Package Inheritance Hierarchy) Package-delivery services, such as FedEx® ,DHL®and UPS® ,offer a number of different shipping options, each with specific costsassociated. Create an inheritance hierarchy to represent various types of packages. Useclass Package as the base class of the hierarchy, then include classes TwoDayPackageand OvernightPackage that derive from Package.Base class Package should include data members representing the name, address, city,state and ZIPcode for both these sender and the recipient of the package, in addition todata members that store the weight (in ounces)and cost per ounce to ship the package.Package’s constructor should initialize these data members. Ensure that the weight andcost per ounce contain positive values. Package should provide a public memberfunction calculate Cost that returns a double indicating the cost associated with shippingthe package. Package’s calculate Cost function should determine the cost bymultiplying the weight by the cost per…(Package Inheritance Hierarchy) Package-delivery services, such as FedEx® ,DHL®and UPS® ,offer a number of different shipping options, each with specific costsassociated. Create an inheritance hierarchy to represent various types of packages. Useclass Package as the base class of the hierarchy, then include classes TwoDayPackageand OvernightPackage that derive from Package.Base class Package should include data members representing the name, address, city,state and ZIPcode for both these sender and the recipient of the package, in addition todata members that store the weight (in ounces)and cost per ounce to ship the package.Package’s constructor should initialize these data members. Ensure that the weight andcost per ounce contain positive values. Package should provide a public memberfunction calculate Cost that returns a double indicating the cost associated with shippingthe package. Package’s calculate Cost function should determine the cost bymultiplying the weight by the cost per…