It’s the night before my Software Methodology exam, Vicki and I are hungry and decided to order food from Noodle Gourmet…and I think I am having too much fun learning how thread synchronization works in Java.
(For those of you who don’t know me: Vicki is my flatmate and partner in crime, and I detest all seafood hahaha)
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public class Conversation {
public static void main(String[] args) {
Round r = new Round();
new Jenny(r);
new Vicki(r);
}
}
class Round {
boolean available = false;
public synchronized void ask(String msg) {
while (available) {
try {
wait();
} catch (InterruptedException e) {
e.printStackTrace();
}
}
System.out.println(Thread.currentThread().getName() +
": " + msg);
available = true;
notify();
}
public synchronized void answer(String msg) {
while (!available) {
try {
wait();
} catch (InterruptedException e) {
e.printStackTrace();
}
}
System.out.println(Thread.currentThread().getName() +
": " + msg);
available = false;
notify();
}
}
class Jenny implements Runnable {
Round r;
String[] talk = { "What are you eating?" , "Ewww.",
"I politely decline your offer. :P" };
public Jenny(Round r) {
this.r = r;
new Thread(this, "Jenny").start();
}
@Override
public void run() {
for (String s : talk) {
r.ask(s);
}
}
}
class Vicki implements Runnable {
Round r;
String[] talk = { "Fish cake." , "Would you like some? :P",
"LOLOL." };
public Vicki(Round r) {
this.r = r;
new Thread(this, "Vicki").start();
}
@Override
public void run() {
for (String s : talk) {
r.answer(s);
}
}
}
When you compile and run the above code, you’ll get this little conversation:
Jenny: What are you eating?
Vicki: Fish cake.
Jenny: Ewww.
Vicki: Would you like some? :P
Jenny: I politely decline your offer. :P
Vicki: LOLOL.
Anyways, back to studying. D: