Threadlocal shared variables within a thread scope

emulate the Threadlocal class implementation : Thread-scoped shared variables, each thread can only access his own, and cannot access other threads.

 PackageCom.ljq.test.thread;ImportJava.util.HashMap;ImportJava.util.Map;ImportJava.util.Random;/*** thread-wide Shared variables * * Three modules shared data, main thread module and AB module *@authorAdministrator **/ Public classThreadscopesharedata {//prepare the shared data    Private Static intdata = 0; //store data for each thread    Private StaticMap<thread, integer> threaddata =NewHashmap<thread, integer>();  Public Static voidMain (string[] args) {//Start Two threads         for(inti = 0; I < 2; i++) {            NewThread (NewRunnable () {@Override Public voidrun () {//now modify the data in the current thread, give the modification information                    intdata =NewRandom (). Nextint (); //Store The thread information and the corresponding data.Threaddata.put (Thread.CurrentThread (), data); System.out.println (Thread.CurrentThread (). GetName ()+ "has put data:" +data); NewA (). get (); NewB (). get ();        }}). Start (); }    }    Static classA { Public voidget () {intdata =Threaddata.get (Thread.CurrentThread ()); System.out.println ("A from" +Thread.CurrentThread (). GetName ()+ "Get data:" +data); }    }    Static classB { Public voidget () {intdata =Threaddata.get (Thread.CurrentThread ()); System.out.println ("B from" +Thread.CurrentThread (). GetName ()+ "Get data:" +data); }    }}

Operation Result:

Xxx
Xxx
xxxxxxx
Xxx
Xxx
Xxx

Threadlocal shared variables within a thread scope