Template Method Pattern in Java: Explanation & Practice

Problem summary

Create abstract Game with template play() method. Subclasses implement specific steps.

Starter code

// Abstract Game with:
// - final void play() - calls init, start, end
// - abstract init(), start(), end()

// Chess and Cricket implement differently

public class Main {
    public static void main(String[] args) {
        // Play chess game
    }
}

Expected output and test cases

• Chess game

  Setting up chess board
  Chess game started
  Checkmate!

• Cricket game

  Toss coin
  Play cricket
  Match over

• Poker game

  Deal cards
  Play poker
  Showdown!

Hints

1. Template method is final in parent
2. Steps are abstract, implemented by children
3. Algorithm structure stays same

Related Inheritance exercises

• Practice Multiple Interfaces in Java
• Practice Comparable Implementation in Java
• Practice Simple Factory Pattern in Java

Practice all Inheritance exercises · Run this idea in the Java compiler