How to change the class of son's function which inherited from father class?

时间: 2024-05-29 18:08:16 浏览: 79
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Java_inherit_abstract_function_interfaces_classic__Inherited

To change the class of a son's function that is inherited from a father class, you can create a new class that inherits from the father class and override the son's function in the new class with the desired behavior. Alternatively, you can also directly modify the son's function in the son class to change its behavior, but this may not be recommended if you want to maintain the integrity of the original father class.
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Create a class called Employee whose objects are records for an employee. This class will be a derived class of the class Person which you will have to copy into a file of your own and compile. An employee record has an employee's name (inherited from the class Person), an annual salary represented as a single value of type double, a year the employee started work as a single value of type int and a national insurance number, which is a value of type String. Your class should have a reasonable number of constructors and accessor methods, as well as an equals method. Write another class containing a main method to fully test your class definition

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Create a HistoryPanel class that extends JPanel. The constructor of HistoryPanel takes as argument a model object of type Library, which you need to store in some private instance variable. Add to the HistoryPanel class two private methods called historyMax and historyMin that take an arraylist of integers as argument and return as result the maximum and minimum number in the arraylist, respectively (you can assume that the arraylist contains at least one number). Then add to the HistoryPanel class a private method called historyRange that takes an arraylist of integers as argument and returns as result the difference between the max and min of the integers in the arraylist, or returns as result 10 if the difference between the man and min of the integers in the arraylist is strictly less than 10. Override the protected void paintComponent(Graphics g) method inherited from JPanel, and, inside your new paintComponent method, draw graphically how the total number of books borrowed by all users of the library changes over time, as follows:

Note that we use the getHeight method to adjust the y-coordinates of the points so that they are drawn from the bottom of the panel upwards. This is because the origin (0,0) of the coordinate system...

please give a example about how to implement son class and father class by python

When creating instances of the Father and Son classes, we can see that the Son instance has both the name attribute inherited from the Father class and the age attribute specific to the Son class.

Define a Pet class that stores the pet’s name, age, and weight. Add appropriate constructors, accessor, and mutator functions. Also define a function named getLifespan that returns a string with the value “unknown lifespan.” Next, define a Dog class that is derived from Pet. The Dog class should have a private member variable named breed that stores the breed of the dog. Add mutator and accessor functions for the breed variable and appropriate constructors. Redefine the getLifespan function to return "Approximately 7 years" if the dog’s weight is over 100 pounds and "Approximately 13 years" if the dog’s weight is under 100 pounds. Next, define a Rock class that is derived from Pet. Redefine the getLifespan function to return “Thousands of years”. Finally, write a test program that creates instances of pet rocks and pet dogs that exercise the inherited and redefined functions

The Dog class is derived from Pet and adds a breed attribute, as well as a redefined getLifespan method that takes into account the dog's weight. The Rock class is also derived from Pet and...

c++ Define a Pet class that stores the pet’s name, age, and weight. Add appropriate constructors, accessor, and mutator functions. Also define a function named getLifespan that returns a string with the value “unknown lifespan.” Next, define a Dog class that is derived from Pet. The Dog class should have a private member variable named breed that stores the breed of the dog. Add mutator and accessor functions for the breed variable and appropriate constructors. Redefine the getLifespan function to return "Approximately 7 years" if the dog’s weight is over 100 pounds and "Approximately 13 years" if the dog’s weight is under 100 pounds. Next, define a Rock class that is derived from Pet. Redefine the getLifespan function to return “Thousands of years”. Finally, write a test program that creates instances of pet rocks and pet dogs that exercise the inherited and redefined functions.

// exercise the inherited and redefined functions cout << "Pet 1 - Name: " << pet1->getName() , Age: " << pet1->getAge() , Weight: " << pet1->getWeight() , Lifespan: " << pet1->getLifespan() ; ...

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You will need to implement the isIn and draw methods yourself, using Pythagoras's theorem to calculate the distance between the center of the bubble and the given point, and the Graphics object ...

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It also redefines the getLifespan function to return a different value depending on the weight of the dog. The Rock class is a special case of a pet that has a very long lifespan, so it redefines the...

c++ Problem 1 Define a Pet class that stores the pet’s name, age, and weight. Add appropriate constructors, accessor, and mutator functions. Also define a function named getLifespan that returns a string with the value “unknown lifespan.” Next, define a Dog class that is derived from Pet. The Dog class should have a private member variable named breed that stores the breed of the dog. Add mutator and accessor functions for the breed variable and appropriate constructors. Redefine the getLifespan function to return "Approximately 7 years" if the dog’s weight is over 100 pounds and "Approximately 13 years" if the dog’s weight is under 100 pounds. Next, define a Rock class that is derived from Pet. Redefine the getLifespan function to return “Thousands of years”. Finally, write a test program that creates instances of pet rocks and pet dogs that exercise the inherited and redefined functions.

Similarly, the Rock class is derived from Pet and redefines the getLifespan function to return "Thousands of years". The test program creates instances of Pet, Dog, and Rock classes and ...

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Sure, here is an implementation of the HistoryPanel class with the requested methods and the graphical representation of the total number of books borrowed over time: java import java.awt.Color; ...

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