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Code Snippet on Java Concurrency
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| /* | |
| Using the synchronized keyword to protect blocks of code within a method. | |
| This block is guarded by a key, which can be either a string or an object | |
| This key is called the lock | |
| */ | |
| public synchronized void critial() { | |
| // some thread critical stuff | |
| } | |
| public class MyRunnable implements Runnable { | |
| private final long count; | |
| MyRunnable(long count) { | |
| this.count = count; | |
| } | |
| @Override | |
| public void run() { | |
| long sum = 0; | |
| for (long i = 1; i < count; i++) { | |
| sum += 1; | |
| } | |
| System.out.println(sum); | |
| } | |
| } | |
| public class MyCallable implements Callable<Long> { | |
| @Override | |
| public Long call() throws Exception { | |
| long sum = 0; | |
| for (long i = 0; i <= 100; i++) { | |
| sum += i; | |
| } | |
| return sum; | |
| } | |
| } | |
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