leetcode-go/basis/concurrent/TestBlockingQueue.java

import java.util.concurrent.*;

public class TestBlockingQueue {
    public static void main(String[] args) {
        BlockingQueue<String> queue = new ArrayBlockingQueue<>(3);
        ExecutorService executor = Executors.newCachedThreadPool();
        for (int i = 0; i < 2; i++) {
            executor.execute(() -> {
                try {
                    String str = queue.take();
                    System.out.println("Take " + str);
                } catch (Exception e) {
                    e.printStackTrace();
                }
            });
        }
        for (int i = 0; i < 3; i++) {
            final int ms = i * 200;
            executor.execute(() -> {
                try {
                    Thread.sleep(ms);
                    queue.put("product");
                    System.out.println("Put product");
                } catch (Exception e) {
                    e.printStackTrace();
                }
            });
        }
        executor.execute(() -> {
            try {
                String str = queue.take();
                System.out.println("Take " + str);
            } catch (Exception e) {
                e.printStackTrace();
            }
        });
        executor.shutdown();
    }
}