• Create a partition called BusSchedule with 0 MB for the size of org cache and session cache. The 0 MB allocation enables you to test cache misses.
• Create a public Apex class called BusScheduleCache.
• Add this variable to the class: private Cache.OrgPartition part;
• In the constructor, create a new instance of Cache.OrgPartition by passing it the partition name (local.BusSchedule). Assign this object to the class variable (part).
• Add two public methods. a. The first method, putSchedule(), returns void and takes these parameters: String busLine, Time[] schedule. b. The second method, getSchedule(), returns a bus schedule as a time array (Time[]) and takes this parameter: String busLine.
• Implement the putSchedule() method so that it stores the passed-in values in the org cache by using the partition class variable (part).
• Implement the getSchedule() method so that it returns the schedule for the specified bus line by using the partition class variable (part).
• Add logic to the getSchedule() method to handle cache misses. If null is returned for the cached value, getSchedule() should return the following default schedule as a Time array with two Time objects: one Time object value of 8am and another of 5pm. Use the Apex Time.newInstance() method to create the Time objects.

public class BusScheduleCache {   
    // Get partition
    private Cache.OrgPartition part;
    String partitionName = 'local.BusSchedule';
    
    public BusScheduleCache(String partitionName) {
		Cache.OrgPartition newpart = Cache.Org.getPartition(partitionName);
        part = newpart;
    }
    
    public static void putSchedule(String busLine, Time[] schedule) {
        Cache.Org.put(busline, schedule);
    }
        
    public static Time[] getSchedule(String busLine) {
        Time[] schedule;
        
        // Get a cached value
		Object obj = Cache.Org.get(busLine);
		// Cast return value to a specific data type
		Time t2 = (Time)obj;
        if (t2 != null) {
        	schedule.add(t2);
        }
        else {
            Time t3 = Time.newInstance(8,0,0,0);
            schedule.add(t3);
            Time t4 = Time.newInstance(17,0,0,0);
            schedule.add(t4);
        }        
        return schedule;
    }  
      
}