— Scott McNealy, Sun Microsystems Chairman, President and ceo

1
2
3
A try with only a finally (no catch) 
must still declare the exception.
void go() throws FooException {
try {
x.doStuff();
} finally { }
}
4
A try without a catch 
doesn’t satisfy the 
handle or declare law

---

you are here
4
exception 
handling
339
Code Kitchen
There is NO way 
I’m letting Betty win the 
code-off this year, so I’m 
gonna make it myself from 
scratch.
But why don’t 
you just use 
Ready-bake code?
You don’t have to do it 
yourself, but it’s a lot 
more fun if you do.
The rest of this chapter 
is optional; you can use 
Ready-bake code for all 
the music apps.
But if you want to learn 
more about JavaSound, 
turn the page.

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340
 
chapter 11
Remember near the beginning of the chapter, we looked at how MIDI data holds 
the instructions for what should be played (and how it should be played) and we 
also said that MIDI data doesn’t actually create any sound that you hear. For sound 
to come out of the speakers, the MIDI data has to be sent through some kind of 
MIDI device that takes the MIDI instructions and renders them in sound, either 
by triggering a hardware instrument or a ‘virtual’ instrument (software synthe-
sizer). In this book, we’re using only software devices, so here’s how it works in 
JavaSound:
Making actual sound
You need FOUR things:
Sequencer
plays
has a
Midi 
Event
Midi 
Event
Midi 
Event
Sequence
Track
Midi 
Event
holds
The Sequencer is the thing 
that actually causes a song 
to be played. Think of it like 
a music CD player.
The Sequence is the 
song, the musical piece 
that the Sequencer will 
play. For this book, think 
of the Sequence as a 
music CD, but the whole