Code Lab

Cuboid and cube

EasyClasses6 min

Write a class Cuboid. The constructor new Cuboid(length, width, height) stores the sizes in the fields length, width and height. The getter volume returns the volume, the getter surfaceArea returns the total surface area.

Then write a class Cube that extends Cuboid. Its constructor takes only the edge length.

Examples

new Cuboid(1, 2, 3).volume

Returns 6

new Cuboid(1, 2, 3).surfaceArea

Returns 22

Six faces, two of each kind.
new Cube(2).volume

Returns 8

Source

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  1. The constructor stores the sizes
  2. Cuboid volume
  3. Cuboid surface area
  4. Cube volume and area
  5. Cube extends Cuboid

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