iteye_15601的博客

[code="java"]public class NumberRange { private AtomicInteger lower = new AtomicInteger(0); private AtomicInteger upper = new AtomicInteger(0); public void setLower(int i) { if (i > upp...

[code="java"]public class Test { public List lists = Collections .synchronizedList(new ArrayList()); //使用不同的锁策略,导致数据出现混乱 public synchronized boolean listIfAbsent(String str) { bo...

[code="java"]public class UnSafeOperation { //直接使用this加锁 public synchronized String get(Vector vector) { if (vector.isEmpty()) { return null; } int index = vector.size() - 1; r...

[code="java"]public class PrimeGenerator implements Runnable { private final List list = new ArrayList(); private volatile boolean cancell; @Override public void run() { BigInteger ...

之前对并发了解的很少,觉得如果程序存在竞争条件,就直接加一个Synchronized就可以解决。发现越多很多源代码之后,发现别人加锁并不是简简单单的在方法上面加一个synchroized这么简单,先上一段代码.[code="java"]public List lists = Collections .synchronizedList(new ArrayList()); pu...