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Practice

OOP workout

⭐ beginner~40 min of coding4 challenges

Shapes, payroll, notifications, vehicles — polymorphism and contracts under discriminating tests.

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What you will practice

  1. Polymorphic shapes⭐ beginner
  2. Payroll with base reuse⭐ beginner
  3. Notifier behind an interface⭐ beginner
  4. Vehicle fleet totals⭐ beginner

Need the concept first? Re-read the lesson.