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This article mainly explains "how to achieve multithreading in Java". The content in the article is simple and clear, and it is easy to learn and understand. Please follow the editor's train of thought to study and learn "how to achieve multithreading in Java".

Threads are code that can be executed in parallel and independently. The programs I wrote before can only do one thing, that is, there is only one thread. Multithreaded programming can divide program tasks into multiple parallel subtasks that run at the same time and do not interfere with each other. My understanding of multithreading comes from fighting games. In the fighting game, two people fight each other through two threads, otherwise how can you make your move, I will send my shock wave.

(January 18) I suddenly came up with a question to add. Is multithreading what we usually call multitasking? My understanding is that you can't say that, but you can say it.

To put it simply, multithreading provides a mechanism for parallel scheduling of multiple threads within a process, while multitasking provides a mechanism for running multiple processes within an operating system.

The basic principle of a multitasking operating system (such as windows) is that the operating system allocates cpu time slices to multiple threads, and each thread completes within the time slices specified by the operating system (note that the multiple threads here belong to different processes). The operating system constantly switches from the execution of one thread to the execution of another thread, and so on, from a macro point of view, it seems that multiple threads are executing together. Because these threads belong to different processes, it seems to us that multiple processes are executing at the same time, thus achieving multitasking. Whoops, really roundabout.

As mentioned above, there is a clear difference between multithreading and multitasking. But think again, doesn't multithreading within an application also depend on CPU allocating time slices? Since the principle is the same, then multi-thread can also be said to be multitasking.

After a Java program starts, there is already a thread running. We can use the following example to make a preliminary impression of a thread.

Class testthread {

Public static void main (String args []) {

Thread t=Thread.currentThread ()

T.setName ("This Thread is running")

System.out.println ("The running thead:" + t)

Try {

For (int iTuno Bandi)

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