Hi! So I need help with problem 44, chapter 4 in \'Objects First With Java 5th E

Question

Hi!

So I need help with problem 44, chapter 4 in 'Objects First With Java 5th Edition'.

"Consider how you might play multiple tracks in a random order. Would you want to make sure that all tracks are played equally or prefer favorite tracks? How might a “play count” field in the Track class help with this task? Discuss the various options."

I don't understand the solution given by this website. Can you please simplify it and explain the options and how to discuss them? Because I'm really confused right now...

Thank you!

Explanation / Answer

Solution:

Since you have not posted your Track class, so i can not tell ypu how you can implement.

But I can tell you that track count will help you to choose multiple track with equal probability.

Because tract count is the only way to know how many track we have , means how many track we have as a option to play. Generate a randome number between 1 to current_track_count to choose a track.

So if you have choose a track, then current_track_count has decreased by 1, meand you have to generate a random number between 1 to (track_count-1) to choose next track. Yes , you need to move first choosen track at

end so that it can not fall in range 1 to trac_count -1 (because it might be that firt choosen track can be choosen again)

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