Counter and Theme Toggle - Apex Typing CST Test

Counter and Theme Toggle — Apex Code

Demonstrates a simple counter with theme toggling using Apex classes and console output (system debug).

public class Counter {
	public Integer count = 0;
	public Boolean isDark = false;

	public void updateUI() {
		System.debug('Counter: ' + count);
		System.debug('Theme: ' + (isDark ? 'Dark' : 'Light'));
	}

	public void increment() { count++; updateUI(); }
	public void decrement() { count--; updateUI(); }
	public void reset() { count = 0; updateUI(); }
	public void toggleTheme() { isDark = !isDark; updateUI(); }
}

// Simulate actions
Counter c = new Counter();
c.updateUI();
c.increment();
c.increment();
c.toggleTheme();
c.decrement();
c.reset();

Apex Language Guide

Apex is a strongly typed, object-oriented programming language developed by Salesforce for building scalable, secure, and automated applications on the Salesforce platform. It allows developers to execute business logic on the server side, integrate external systems, and customize CRM workflows using a syntax similar to Java.

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