using java write a program Consider the following class definition that represents an AM radio: public class radio { public bool isSwitchedOn; // either true or false public int volume; // from 0 to 10 public double frequency; // from 535 to 1605 Mhz } a) Provide a redesigned radio class that uses more appropriate member access modifiers. b) Provide signatures for two mutator (setter) methods that will enable the two instance variables to be changed through an object of the class. c) Write bodies for the mutator (setter) methods for which you provided signatures in question (b), above. The implemented methods must prevent the two instance variables from being set to invalid values. Return a Boolean flag to indicate the success/failure of the requested operation [Hint: public boolean setValue(int value) {if(value >0) { this.value=value; return true; } return false; } ] d) Provide a constructor for the radio class that will initialize the instance variables to suitable (valid) start values. e) Write main Method code that instantiates the radio class and demonstrates that the setter methods you designed above behave correctly, using a set of boundary tests.
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:
using java write a program
Consider the following class definition that represents an AM radio:
public class radio { public bool isSwitchedOn; // either true or false public int volume; // from 0 to 10 public double frequency; // from 535 to 1605 Mhz }
a) Provide a redesigned radio class that uses more appropriate member access modifiers.
b) Provide signatures for two mutator (setter) methods that will enable the two instance variables to be changed through an object of the class.
c) Write bodies for the mutator (setter) methods for which you provided signatures in question (b), above. The implemented methods must prevent the two instance variables from being set to invalid values. Return a Boolean flag to indicate the success/failure of the requested operation [Hint: public boolean setValue(int value) {if(value >0) { this.value=value; return true; } return false; } ] d) Provide a constructor for the radio class that will initialize the instance variables to suitable (valid) start values.
e) Write main Method code that instantiates the radio class and demonstrates that the setter methods you designed above behave correctly, using a set of boundary tests.
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