How to Get Day of Week in Apex - Code Snippet

// Task: Get Day of Week
// Language: Apex

public void get_day_of_week() {
    // Implementation for Get Day of Week
    Object result = ...; // Initialize variable
    // TODO: Implement core logic here
    // Step 1: Prepare data
    // Step 2: Process Get Day of Week
    System.debug("Done");
}