3.1 Lesson Outcomes

After completing this lesson, learners will be able to:

• Build a basic Java game.
• Apply loops and conditional logic in games.
• Use random number generation.
• Create interactive gameplay functionality.
• Develop operable Java game applications.

3.2 Overview

Java can be used to create interactive games ranging from simple console-based games to graphical desktop games using:

• Java Swing,
• JavaFX,
• and console applications.

Game development strengthens:

• problem-solving,
• logical thinking,
• event handling,
• and software design skills.

This lesson introduces learners to practical game development concepts using Java programming.

Understanding Java game development is important because it improves programming logic, interactivity, and software design experience.

Case Study / Scenario

You are a junior Java developer at a small indie gaming company. The company wants you to create a simple interactive Java game that demonstrates:

• Java programming functionality,
• user interaction,
• game logic,
• and operable gameplay.

The game should:

• run successfully,
• respond to user input,
• and apply Java programming concepts.

Suggested examples include:

• Number Guessing Game,
• or Tic-Tac-Toe.

PA0201 — Build a Basic Game Using Java

A Number Guessing Game allows users to interact with randomly generated numbers.

Java Example:

import java.util.Scanner;

import java.util.Random;

public class GuessingGame {

public static void main(String[] args) {

Scanner sc = new Scanner(System.in);

Random rand = new Random();

int number = rand.nextInt(100) + 1;

int guess = 0;

System.out.println(“Guess a number between 1 and 100:”);

while (guess != number) {

guess = sc.nextInt();

if (guess < number) {

System.out.println(“Too Low!”);

} else if (guess > number) {

System.out.println(“Too High!”);

} else {

System.out.println(“Correct! You win!”);

}

}

}

}

Expected Behaviour

• The game generates a random number.
• The player enters guesses.
• The game displays:
  Too High,
  Too Low,
  or Correct.
• The game continues until the correct answer is found.

Practical Activity

Learners must:

• create Java game applications,
• apply loops,
• apply conditions,
• generate random values,
• and handle user interaction.

Optional Advanced Activity — Tic-Tac-Toe Game

A Tic-Tac-Toe game allows two players to interact using a 3×3 grid.

Possible Features

• Two-player gameplay
• Win checking
• Draw checking
• GUI interface using Swing or JavaFX

Practical Activity

Learners may:

• create Tic-Tac-Toe logic,
• store moves using arrays,
• and implement GUI functionality.

AK0201 — Java Programming Functionalities

Java Game Functionality — Purpose

Loops — Control gameplay repetition
Conditions — Control game logic
Arrays — Store game data
Methods — Organize game functions
Random Class — Generate random values
Scanner — Accept user input

Practical Activity

Learners must:

• explain Java game functionality,
• identify game development concepts,
• and apply programming logic.

IAC0201 — Expected Results are Achieved and the Basic Game is Operable

Expected Results

• The game runs successfully.
• Gameplay functions correctly.
• User input is processed correctly.
• Conditions display correct outputs.
• The game continues until completion.
• No runtime errors occur.

3.5 Key Notes / Summary

• Java supports console and GUI-based games.
• Loops control repeated gameplay.
• Conditions manage game decisions.
• Random generates unpredictable values.
• Arrays store game information.
• Methods organize game logic.
• Interactive games strengthen problem-solving skills.