Creating Multiple Threads

Creating Multiple Threads So far, you have been using only two threads the main thread and. one child thread. However, your program can spawn as many threads as it needs. For example, the following program creates three child threads: The output from-this program is...

Using is Alive ( )and Join ( )

Using is Alive ( )and Join ( ) As mentioned, the main thread must be the last thread to finish. In the preceding examples, this is accomplished by calling sleep( ) within maine ), with a long enough delay to ensure that all child threads terminate prior to the main...

Thread priorities

Thread priorities   Thread priorities are used by the thread scheduler to decide when each thread should be allowed to run. In theory, higher-priority threads get more CPU time than lower-priority threads. In practice, the amount of CPU time that a thread gets...

Synchronization

Synchronization  When two or more threads need access to .1 shored resource, they need some way to ensure that the resource will be used by only one thread at a time. The process by which this is achieved is called  As you will see, Java provides...

Using Synchronized Methods

Using -Synchronized Methods  Synchronization is easy in Java, because all objects have their on implicit monitor associated with them. To enter an object’s monitor, just call a method that has been modified with the synchronized keyword. Whiic a thread is inside...

The synchronized Statement

The synchronized Statement  While creating synchronized methods within classes that you create is an easy and effective means of achieving synchronization, it will not work in all cases. To understand why, consider the following. Imagine that you want to synchronize...