join()应该是我们在java中经常会用到的一个方法,它主要是将当前线程置为WAITTING状态,然后等待调用的线程执行完毕或被interrupted。 join()是Thread中定义的方法,我们看下他的定义: 代码语言:javascript 代码运行次数:0 运行 AI代码解释 /** * Waits for this thread to die. * * <p> An invocation of this...
Attempts to invoke in other contexts * result in exceptions or errors, possibly including {@code * ClassCastException}. * * @return {@code this}, to simplify usage */ public final ForkJoinTask<V> fork() { ((ForkJoinWorkerThread) Thread.currentThread()) .pushTask(this); return this; }...
guava库中,包含了很好的join和split的功能,例子如下:1) 将LIST转换为使用字符串连接的字符串 [code="java"] List names = Lists.newArrayList("John", "Jane", "Adam", "Tom"); String result = Joiner.on(",").join(names); java List Test ...
* * @return <code>true</code> if this thread is alive; * <code>false</code> otherwise. */ public final boolean isAlive() { return nativePeer != 0; } @FastNative public final native void wait(long millis, int nanos) throws InterruptedException; 单纯从代码上看: 如果线程被生成了,但还...
* <p> An invocation of this method behaves in exactly the same * way as the invocation * * <blockquote> * {@linkplain#join(long) join}{@code(0)} * </blockquote> * *@throwsInterruptedException * if any thread has interrupted the current thread. The ...
比如在线程B中调用了线程A的Join()方法,直到线程A执行完毕后,才会继续执行线程B。 t.join(); //调用join方法,等待线程t执行完毕 t.join(1000); //等待 t 线程,等待时间是1000毫秒。 下面是一段JDK中的代码: /*** Waits at most <code>millis</code> milliseconds for this thread to ...
Concurrent Programming in Java Plain Old Threads Historically, concurrent programming in Java consisted of writing threads through the java.lang.Thread class and the java.lang.Runnable interface, then making sure their code behaved in a correct and consistent fashion with respect to shared mutable obje...
Dalvik.Bytecode Dalvik.SystemInterop Java.Awt.Font Java.Beans Java.Interop Java.Interop.Expressions Java.Interop.Tools.JavaCallableWrappers Java.IO Java.Lang Java.Lang.Annotation Java.Lang.Invoke Java.Lang.Ref Java.Lang.Reflect Java.Lang.Runtimes Java.Math Java.Net Java.Nio Java.Nio.Channels Java...
java.lang.Object com.amazonaws.services.glue.model.Join All Implemented Interfaces:StructuredPojo, Serializable, Cloneable@Generated(value="com.amazonaws:aws-java-sdk-code-generator") public class Join extends Object implements Serializable, Cloneable, StructuredPojo...
hadoop fs -put /data/mapreduce5/orders1 /mymapreduce5/in hadoop fs -put /data/mapreduce5/order_items1 /mymapreduce5/in IDEA中编写Java代码 1. package mapreduce5; import java.io.BufferedReader; import java.io.FileReader; import java.io.IOException; ...