//调用的工具 import java.util.concurrent.Executors; import java.util.concurrent.ScheduledExecutorService; import java.util.concurrent.TimeUnit;
public class Task3 {
</span><span style="color: rgba(0, 0, 255, 1)">public</span> <span style="color: rgba(0, 0, 255, 1)">static</span> <span style="color: rgba(0, 0, 255, 1)">void</span><span style="color: rgba(0, 0, 0, 1)"> main(String[] args) { </span><span style="color: rgba(0, 128, 0, 1)">/</span><span style="color: rgba(0, 128, 0, 1)"> * Runnable：实现了Runnable接口，jdk就知道这个类是一个线程 </span><span style="color: rgba(0, 128, 0, 1)">*/</span><span style="color: rgba(0, 0, 0, 1)"> Runnable runnable </span>= <span style="color: rgba(0, 0, 255, 1)">new</span><span style="color: rgba(0, 0, 0, 1)"> Runnable() { </span><span style="color: rgba(0, 128, 0, 1)">//</span><span style="color: rgba(0, 128, 0, 1)">创建 run 方法</span> <span style="color: rgba(0, 0, 255, 1)">public</span> <span style="color: rgba(0, 0, 255, 1)">void</span><span style="color: rgba(0, 0, 0, 1)"> run() { </span><span style="color: rgba(0, 128, 0, 1)">//</span><span style="color: rgba(0, 128, 0, 1)"> task to run goes here</span> System.out.println("Hello, stranger"<span style="color: rgba(0, 0, 0, 1)">); } }; </span><span style="color: rgba(0, 128, 0, 1)">//</span><span style="color: rgba(0, 128, 0, 1)"> ScheduledExecutorService:是从Java SE5的java.util.concurrent里， </span><span style="color: rgba(0, 128, 0, 1)">//</span><span style="color: rgba(0, 128, 0, 1)"> 做为并发工具类被引进的，这是最理想的定时任务实现方式。</span> ScheduledExecutorService service =<span style="color: rgba(0, 0, 0, 1)"> Executors .newSingleThreadScheduledExecutor(); </span><span style="color: rgba(0, 128, 0, 1)">//</span><span style="color: rgba(0, 128, 0, 1)"> 第二个参数为首次执行的延时时间，第三个参数为定时执行的间隔时间 </span><span style="color: rgba(0, 128, 0, 1)">//</span><span style="color: rgba(0, 128, 0, 1)"> 10：秒 5：秒 </span><span style="color: rgba(0, 128, 0, 1)">//</span><span style="color: rgba(0, 128, 0, 1)"> 第一次执行的时间为10秒，然后每隔五秒执行一次</span> service.scheduleAtFixedRate(runnable, 10, 5<span style="color: rgba(0, 0, 0, 1)">, TimeUnit.SECONDS); } }
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