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Volatile2.java
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63 lines (54 loc) · 1.44 KB
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import java.lang.Thread.State;
/**
* JAVA MULTITHREAD - Volatile e Yield - Exemplo reproduzível
* @author RinaldoDev
*/
public class Volatile2 {
private static volatile int numero = 0;
private static volatile boolean preparado = false;
// private static int numero = 0;
// private static boolean preparado = false;
private static class MeuRunnable implements Runnable {
@Override
public void run() {
while (!preparado) {
Thread.yield();
}
if (numero != 42) {
// System.out.println(numero);
throw new IllegalStateException("Inscreva-se no canal!");
}
}
}
public static void main(String[] args) throws InterruptedException {
while (true) {
Thread t0 = new Thread(new MeuRunnable());
t0.start();
Thread t1 = new Thread(new MeuRunnable());
t1.start();
Thread t2 = new Thread(new MeuRunnable());
t2.start();
numero = 42;
preparado = true;
while (
t0.getState() != State.TERMINATED
|| t1.getState() != State.TERMINATED
|| t2.getState() != State.TERMINATED
) {
// espera
}
numero = 0;
preparado = false;
}
}
}
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