ESlomskiWeek4Homework.cls

public with sharing class WeekFourHomework {

    //Let's practice calling different methods by writing our very own methods. You will write and save methods in the space below
    //that call the existing methods you see already written here.  Ready?  Let's Go!


    //Sample: Here is a public method that calls the getCitiesForExpansion below and prints the results to our debug log
   public static void printOutCitiesForExpansionDemo() {
        //The code on the left of the equals sign instantiates a list of Strings, the code on the right side calls our method and returns a list of cities
        //the equals sign assigns the returrned vaule, to the list we created
       List<String> cities = getCitiesForExpansion();
        System.debug('Here are the cities: ' + cities);
    }


    //1.  Write a public method that calls the getCitiesForExpansion method to get a list of cities, then add
    //another city to the list before printing it to the debug log.
    //(see the sample above for an example of calling that method-You can even start by copying and pasting that method here, renaming and modifying it)
    
    public static void CitiesForExpansion() {
       List<String> cities = getCitiesForExpansion();
        cities.add('Sacramento');
        cities.add('Nashville');
        cities.add('Denvor');
        cities.add('Dayton');
        
        System.debug('Here are the cities: ' + cities);
    }
    
    //2.Write a public method that calls the isTopSalesCity method and prints out the returned boolean to the debug log.
    //You'll need to pass in a string variable that is a city name as the argument!
  
    public static List <String>	isTopSalesCity() {
        List<String> topCities = new List<String>();
        topCities.add('Sacramento');
        topCities.add('Nashville');
        topCities.add('Denvor');
        topCities.add('Dayton');  
        
        return topCities; 
    }
      public static Boolean isTopSalesCity (String topCities) {      
        {     
            if (topCities == 'Sacramento') {
            return true;
        } else {
            return false;
        }
    }
        
       //System.debug('Is Sacramenton a top city? ' + topCities);
    }

I had some issues on #2