Question: COde in Java. Use the following class hierarchy for this question All WritingUtensil objects have the following attributes. A String variable indicating the brand of

COde in Java. Use the following class hierarchy for this question

COde in Java. Use the following class hierarchy for this question All

All WritingUtensil objects have the following attributes.

A String variable indicating the brand of the WritingUtensil

A String variable representing the type of WritingUtensil (pen or pencil)

The WritingUtensil class also contains a toString method

The following table shows the intended behavior of the WritingUtensil class.

Statement

Result

WritingUtensil bic = new WritingUtensil(bic, pen);

A new WritingUtensil object is created

bic.toString();

The String This is a bic pen is returned

(a) Write the complete WritingUtensil class. Your implementation must meet all specifications and conform to the behavior shown in the table.

Write the WritingUtensil class here:

The Pencil class is a subclass of WritingUtensil. The Pencil class does not contain any attributes or methods other than those found in the WritingUtensil class.

The constructor to the Pencil class accepts one parameter for the brand of the pencil. The constructor passes this parameter along with the string literal "pencil" to the WritingUtensil class to construct the object.

The following table shows the intended behavior of the Pencil class.

Statement

Result

Pencil ticonderoga = new Pencil(ticonderoga);

A new Pencil object is created

ticonderoga.toString();

The String This is a ticonderoga pencil is returned

(b) Write the complete Pencil class. Your implementation must meet all specifications and conform to the behavior shown in the table.

Write the Pencil class here:

The MechanicalPencil class is a subclass of Pencil. The MechanicalPencil class contains one additional attribute not found in Pencil: a double variable representing the thickness of the pencils lead, in millimeters.

The constructor to the MechanicalPencil class accepts two parameters for the brand and lead thickness. The constructor passes the brand parameter to the Pencil class to construct the object.

The following table shows the intended behavior of the MechanicalPencil class.

Statement

Result

MechanicalPencil pentel = new

MechanicalPencil(pentel, 0.7);

A new MechanicalPencil object is created

pentel.toString();

The String This is a pentel pencil with 0.7mm lead is returned

(c) Write the complete MechanicalPencil class. Your implementation must meet all specifications and conform to the behavior shown in the table.

Write the MechanicalPencil class here:

WritingUtensil Pen Pencil Mechanical Pencil

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