ITPEC FE OOP & Inheritance Questions with Answers

OOP & Inheritance

1 question · Fundamental Engineering

Oct 2025 · Question 6

From the answer group below, select the correct answer to be inserted into blank in the description.

Class Rectangle represents a two-dimensional figure, and class Cuboid represents a three-dimensional figure. The class Cuboid is a subclass of the class Rectangle. Figures 1 and 2 explain the classes Rectangle and Cuboid, respectively.

Member variable	Type	Description
`length`	`integer`	Dimension of length.
`width`	`integer`	Dimension of width.

Constructor	Description
`Rectangle(integer: _length,integer: _width)`	Initialize member variable `length` with `_length` and member variable `width` with `_width`.

Method	Return value	Description
`enlarge(Rectangle:shape)`	None	To increase the size, add `shape.length` to `length` and `shape.width` to `width`.
`output()`	None	Output in format “`(length, width)`”.

Figure 1 Class Rectangle

Member variable	Type	Description
`height`	`integer`	Dimension of height.

Constructor	Description
`Cuboid(integer: _length,integer: _width,integer: _height)`	Constructor of the super class is called with `_length` and `_width` as arguments in that order, and member variable `height` is initialized with the argument `_height`.

Method	Return value	Description
`enlarge(Cuboid:shape)`	None	To increase the size, add `shape.length` to `length`, `shape.width` to `width` and `shape.height` to `height`.
`output()`	None	Output in format “`(length, width, height)`”.

Figure 2 Class Cuboid

When the program is executed, it is expected to produce the output “blank”.

[Program]

Rectangle: f1 ← Rectangle(5, 2)

Cuboid: f2 ← Cuboid(9, 4, 7)

f1.enlarge(f2)

f1.output()