TaskManager

public class Task
        {
            private string title;
            private int priority;
            private bool isComplete;
            public Task(string title, int priority, bool isComplete)
            {
                this.title = title;
                this.priority = priority;
                this.isComplete = isComplete;
            }
            public string GetTitle() { return title; }
            public int GetPriority() { return priority; }
            public bool GetIsComplete() { return isComplete; }
            public void SetTitle(string title) { this.title = title; }
            public void SetPriority(int priority) { this.priority = priority; }
            public void SetIsComplete(bool isComplete) { this.isComplete = isComplete; }
            public bool DoIt()
            {
                if (!isComplete)
                {
                    isComplete = true;
                    return true;
                }
                else return false;
            }
        }

        public class TaskManager
        {
            private Task[] tasks;
            private int numOfTasks;
            public TaskManager()
            {
                tasks = new Task[100];
                numOfTasks = 0;
            }
            public int ImportantTask()
            {
                int importantTask = -1;
                int maxPriority = -1;
                for(int i = 0; i < numOfTasks; i++)
                    if (tasks[i].GetIsComplete() && tasks[i].GetPriority() > maxPriority)
                    {
                        importantTask = i;
                        maxPriority = tasks[i].GetPriority();
                    }
                return importantTask;
            }
            public bool AddTask(Task task)
            {
                if (numOfTasks >= tasks.Length - 1)
                {
                    for(int i = 0; i < tasks.Length; i++)
                        if (tasks[i].GetIsComplete())
                        {
                            tasks[i] = task;
                            return true;
                        }
                    return false;
                }
                tasks[numOfTasks++] = task;
                return true;
            }
        }