Thread Local Example

A simple example for Thread Local concept in Java:

public

class ThreadLocalExamples {

public static int x =0;

private static ThreadLocal<Integer> tlocal;

public static void main(String[] args) {

tlocal = new ThreadLocal<Integer>();

ThreadLocalExamples tl =

new ThreadLocalExamples();

T1 t1 = tl.

new T1();

t1.start();

T2 t2 = tl.

new T2();

t2.start();

tlocal.set(100);

System.

out.println("main thread->"+tlocal.get());

try {

t1.join();

t2.join();

}

catch (InterruptedException e) {

e.printStackTrace();

}

System.

out.println(x);

}

class T1 extends Thread {

@Override

public void run() {

x++;

System.

out.println("value in t1->"+tlocal.get());

tlocal.set(200);

System.

out.println("value in t1->"+tlocal.get());

}

}

class T2 extends Thread {

@Override

public void run() {

x++;

System.

out.println("value in t2->"+ tlocal.get());

tlocal.set(300);

}

}

}

 Output:

main thread->100

value in t1->null

value in t1->200

value in t2->null

2