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import java.util.Collections;
import java.util.LinkedList;
import java.util.List;
class PrepareProduction implements Runnable {
private final List<String> queue;
PrepareProduction(List<String> q) {
queue = q;
}
public void run() {
queue.add("1");
queue.add("done");
}
}
class DoProduction implements Runnable {
private final List<String> queue;
DoProduction(List<String> q) {
queue = q;
}
public void run() {
String value = queue.remove(0);
while (!value.equals("*")) {
System.out.println(value);
value = queue.remove(0);
}
}
}
public class Main {
public static void main(String[] args) throws Exception {
List q = Collections.synchronizedList(new LinkedList<String>());
Thread p1 = new Thread(new PrepareProduction(q));
Thread c1 = new Thread(new DoProduction(q));
p1.start();
c1.start();
p1.join();
c1.join();
}
}
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