Counter and Theme Toggle - Eiffel Typing CST Test

Counter and Theme Toggle — Eiffel Code

Demonstrates a simple counter with theme toggling using Eiffel classes and methods.

class
	COUNTER
feature
	count: INTEGER
	is_dark: BOOLEAN

	update_ui
		do
		io.put_string ("Counter: " + count.out + '\n')
		io.put_string ("Theme: " + (if is_dark then "Dark" else "Light") + '\n')
		end

	increment
		do
		count := count + 1
		update_ui
		end

	decrement
		do
		count := count - 1
		update_ui
		end

	reset
		do
		count := 0
		update_ui
		end

	toggle_theme
		do
		is_dark := not is_dark
		update_ui
		end
end

! Simulate actions
local
	c: COUNTER
do
	create c
	c.update_ui
	c.increment
	c.increment
	c.toggle_theme
	c.decrement
	c.reset
end

Eiffel Language Guide

Eiffel is a high-level, object-oriented programming language designed for software engineering with a strong emphasis on correctness, reusability, and maintainability. It supports the Design by Contract methodology, promoting robust and reliable applications.

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