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thread output

Neeladyuti Chaudhury
Greenhorn

Joined: Nov 26, 2012
Posts: 1

Hi ,

can anyone please give the output of the following with a proper explaination?


public class ThreadDemo
{
private int count = 1;
public synchronized void doSomething()
{
for (int i = 0; i < 10; i++)
System.out.println(count++);
}
public static void main(String[] args)
{
ThreadDemo demo = new ThreadDemo();
Thread a1 = new A(demo);
Thread a2 = new A(demo);
a1.start();
a2.start();
}
}
class A extends Thread
{
ThreadDemo demo;
public A(ThreadDemo td)
{
demo = td;
}
public void run()
{
demo.doSomething();
}
}


regards,
Neeladyuti
Tony Docherty
Bartender

Joined: Aug 07, 2007
Posts: 2591
    
  55
Welcome to the ranch.

Please use code tags when posting code.

can anyone please give the output of the following with a proper explaination?

Have you tried running it multiple times to see what happens?
Rakesh K. Cherukuri
Ranch Hand

Joined: Jun 01, 2010
Posts: 48

@Neeladyuti Chaudhury : More you are specific about your question better the chances you get a good response. Your post is very vague and people, who read it, cant even imagine what you are looking/asking for. Can you please rephrase the post to signify which part of it you want to understand ?


Warm Regards,
Rakesh
Sarfarajey Akram
Greenhorn

Joined: Oct 16, 2012
Posts: 4
@Neeladyuti

Welcome to Ranch

I agree with what Rakesh & Tony highlighted about your query. Below is what I understood, please repost if you asked something else.

Your code will output a sequence from 1-20. Sequence 1-10 will come from one thread and 11-20 will come from the other. It is not possible to say which thread prints which sequence as it depends on the thread scheduler.
 
It is sorta covered in the JavaRanch Style Guide.
 
subject: thread output