PLZ help with the following: IN JAVA The following classes are defined: ELDevice, fridge, Computer, laptop (which is considered as type of computer). ELDevice has one attribute called price (double type). Fridge has two attributes called model (string type) and frequency (double type), computer has one attribute called GPUCode (int type), laptop has one attribute called weight(double type) a) Analyze the above classes carefully and explain how they relate to each other (specify the base class(es) and derived class(es) and explain the inheritance hierarchy) b) You are required to write the code of the following two methods (do NOT write any other parts of the classes): b1) assuming that the ELDevice has constructor that accepts one value to initialize the price of the object. Write a constructor of the fridge class. This constructor however must take advantage. If possible, of the already-written ELDevice constructor. b2) Write the equal() method of the computer class, which is used to determine whether or not two computer objects are equal (having the same values of all attributes). Your method must be written properly so that it overrides the default equals() method provided by the language.
OOPs
In today's technology-driven world, computer programming skills are in high demand. The object-oriented programming (OOP) approach is very much useful while designing and maintaining software programs. Object-oriented programming (OOP) is a basic programming paradigm that almost every developer has used at some stage in their career.
Constructor
The easiest way to think of a constructor in object-oriented programming (OOP) languages is:
PLZ help with the following:
IN JAVA
The following classes are defined: ELDevice, fridge, Computer, laptop (which is considered as type of computer). ELDevice has one attribute called price (double type). Fridge has two attributes called model (string type) and frequency (double type), computer has one attribute called GPUCode (int type), laptop has one attribute called weight(double type)
- a) Analyze the above classes carefully and explain how they relate to each other (specify the base class(es) and derived class(es) and explain the inheritance hierarchy)
- b) You are required to write the code of the following two methods (do NOT write any other parts of the classes):
b1) assuming that the ELDevice has constructor that accepts one value to initialize the price of the object. Write a constructor of the fridge class. This constructor however must take advantage. If possible, of the already-written ELDevice constructor.
b2) Write the equal() method of the computer class, which is used to determine whether or not two computer objects are equal (having the same values of all attributes). Your method must be written properly so that it overrides the default equals() method provided by the language.
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