//
// todo.java: task code in Java
//

import java.nio.BufferOverflowException;

class Task
{
    private String description;
    private double hours;
    public Task(String description, double hours)
    {
        this.description = description;
        this.hours = hours;
    }
    public double getHours() { return hours; }
    public String getDescription() { return description; }
}

class TaskList
{
    private static final int MAX = 50;
    private Task[] todo  = new Task[MAX];
    private int    count = 0;
    public void add(Task new_task)
    {
        if ( count >= MAX )
            throw new BufferOverflowException();
        todo[count] = new_task;
        ++count;
    }
    public double totalHours()
    {
        double tot = 0.0;
        for(int i = 0; i < count; ++i)
            tot += todo[i].getHours();
        return tot;
    }
    public static void main(String[] args)
    {
        TaskList tasks = new TaskList();
        tasks.add(new Task("sleep",   6.5));
        tasks.add(new Task("shower",  0.17));
        tasks.add(new Task("program", 16.5));
        tasks.add(new Task("eat",     0.5));
        System.out.println("Total time: "
                           + tasks.totalHours());
    }
}

//
// output:
//
// Total time: 23.67
//