HW Set 7 - thecubscientist.com

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P7B. Consider the Television class on the next page. Write a program that will includethe following:a. Write four new classes, “Plasma”, “DLP”, “LCD”, and “LED” that extend theTelevision class shown below.b. For each of the above classes:i. Write a zero argument constructor for each of the above classes.ii.Write a new two argument constructor for each of these four classes thattake a String argument for the “model” of the Television and a doublefor the “cost” of the television.c. Write a driver program to create each one of these types of Televisions, includinga “Television” object and store them into an ArrayList of type Television. Use afor-each loop to polymorphically call the “toString()” method for eachTelevision in the ArrayList. Sample output is shown below:Page 2AP Computer Science – HW Set 7 Programshttp://thecubscientist.com
public class Television{private String model;private double price;public Television(){this.model = new String();this.price = 0.0;} // end zero-arg constructor Televisionpublic Television( String initialModel, double initialPrice ){this.model = new String( initialModel );this.price = initialPrice;} // end two-arg constructor Televisionpublic void setModel( String newModel ){this.model = newModel;} // end method setModelpublic String getModel(){return this.model;} // end method getModelpublic void setPrice( double newPrice ){this.price = newPrice;} // end method setPricepublic double getPrice(){return this.price;} // end method getPricepublic String toString(){String output = new String();output = "The Model of this tv is: " + this.model +"\tPrice: " +this.price;return output;} // end method toString} // end class TelevisionPage 3AP Computer Science – HW Set 7 Programshttp://thecubscientist.com
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Page 6 and 7: P7D. College Tuition! In this progr

HW Set 7 - thecubscientist.com

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