1)Create two Java classes, Desktop and Laptop that both are subclasses of Computer. a) A Desktop has additional instance variables: width and height (data encapsulation is expected) b) A Laptop has an additional instance variable, weight (data encapsulation is expected). c) Write constructors for both classes that require input for all their instance variables (including Manufacturing Date, Disk size, Number of cores and Color) and no-args constructors. d) Create getters and setters for all instance variables for both Child classes. e) Create toString() methods in Desktop and Laptop. 2) Test Two Child Classes Test your newly created subclasses inside the same TestComputer program you previously created: create two new Laptops and two new Desktops with the data of your choice. Use toString() method to show all data fields (including the data fields in the super class and sub class).
1)Create two Java classes, Desktop and Laptop that both are subclasses of Computer. a) A Desktop has additional instance variables: width and height (data encapsulation is expected) b) A Laptop has an additional instance variable, weight (data encapsulation is expected). c) Write constructors for both classes that require input for all their instance variables (including Manufacturing Date, Disk size, Number of cores and Color) and no-args constructors. d) Create getters and setters for all instance variables for both Child classes. e) Create toString() methods in Desktop and Laptop. 2) Test Two Child Classes Test your newly created subclasses inside the same TestComputer program you previously created: create two new Laptops and two new Desktops with the data of your choice. Use toString() method to show all data fields (including the data fields in the super class and sub class).
Database System Concepts
7th Edition
ISBN:9780078022159
Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Chapter1: Introduction
Section: Chapter Questions
Problem 1PE
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Question
1)Create two Java classes, Desktop and Laptop that both are subclasses of Computer.
a) A Desktop has additional instance variables: width and height (data encapsulation is
expected)
b) A Laptop has an additional instance variable, weight (data encapsulation is expected).
c) Write constructors for both classes that require input for all their instance variables
(including Manufacturing Date, Disk size, Number of cores and Color) and no-args
constructors.
d) Create getters and setters for all instance variables for both Child classes.
e) Create toString() methods in Desktop and Laptop.
a) A Desktop has additional instance variables: width and height (data encapsulation is
expected)
b) A Laptop has an additional instance variable, weight (data encapsulation is expected).
c) Write constructors for both classes that require input for all their instance variables
(including Manufacturing Date, Disk size, Number of cores and Color) and no-args
constructors.
d) Create getters and setters for all instance variables for both Child classes.
e) Create toString() methods in Desktop and Laptop.
2) Test Two Child Classes
Test your newly created subclasses inside the same TestComputer program you previously
created: create two new Laptops and two new Desktops with the data of your choice. Use
toString() method to show all data fields (including the data fields in the super class and sub class).
Test your newly created subclasses inside the same TestComputer program you previously
created: create two new Laptops and two new Desktops with the data of your choice. Use
toString() method to show all data fields (including the data fields in the super class and sub class).
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