Threads:Pls. Help

[rashu gulati]

Which is true abt the code below::
public class joining{
static Thread createThread(final int i,final thread t1)
{
Thread t2=new Thread(){
public void run(){
System.out.println(i+1);
try{
t1.join();
}catch(Interrupted Exception e){
}
System.out.println(i+2);
}
};
System.out.println(i+3);
t2.start();
System.out.println(i+4);
return t2;
}
public static void main(String[] args)
{
createThread(10,createthread(20,Thread.currentThread()));
}
}
Can anyone explain the sequence to me?
Thanks
Rashu Gulati

[Vad Fogel]

Hi, this question was discussed in depth here.

[Don Wood]

Goodness gracious, what test did this question come from? I suppose that given enough time and caffeine I could answer this one using only pencil and paper but it would be difficult to answer it and 60 other questions in two hours.
Is the complexity of this question representative of the questions on the exam?
[ January 09, 2004: Message edited by: Don Wood ]

[Vad Fogel]

Originally posted by Don Wood:
Goodness gracious, what test did this question come from? I suppose that given enough time and caffeine I could answer this one using only pencil and paper but it would be difficult to answer it and 60 other questions in two hours.
Is the complexity of this question representative of the questions on the exam?
[ January 09, 2004: Message edited by: Don Wood ]

A tricky part of the nested method calls and semantics like this is less likely to be there. Otherwise, the real questions on threads and GC are rather difficult and require practice to approach. Luckily, there are only about 10 of them that come on threads. I'd say, the thread and GC questions were the most challenging, so they are worth revisiting a few times.