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Modern Java: From Fundamentals to Advanced Architecture

Solution: Smart Thermostat Control

Explore how to implement a smart thermostat control in Java by applying conditionals and methods. Learn to define static methods and use if-else logic to determine heating, cooling, or standby modes based on temperature comparisons.

We'll cover the following...
Java 25
public class ThermostatControl {
    
    public static String getOperatingMode(double currentTemp, double targetTemp) {
        if (currentTemp < targetTemp - 5) {
            return "Heating";
        } else if (currentTemp > targetTemp + 5) {
            return "Cooling";
        } else {
            return "Standby";
        }
    }
    public static void main(String[] args) {
        System.out.println("Current: 60, Target: 70 -> " + getOperatingMode(60.0, 70.0));
        System.out.println("Current: 80, Target: 70 -> " + getOperatingMode(80.0, 70.0));
        System.out.println("Current: 72, Target: 70 -> " + getOperatingMode(72.0, 70.0));
    }
}
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