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thread dont start
i am runing a c++ program, calling java program through jni wrap.
the java program start 2 thread (totaly 3 java threads).
i insert print before the java thread start and in the run method, and i dont get the print in the run method.
e.g:
main thread:
a.start();
a.isAlive(); -> this one print true!!
and in a thread:
run()
{
System.out.println("start a"); -> this print i dont get
}
i run the same program on unix enviroment and it work o.k.
on nt enviroment using jre 1.3 and jre 1.1.7 - dont work.
there are several senarios in nt, that the small program do work, but i could not find the difrent when it work and not.
the senario that i have that this small program dont work, are those that the java thread are called before the start of the main c++ method. (they are called in the constractor of a global c++ object), but i have several other senarios like the above, that are called before the main c++ process start, that do work.
the java program start 2 thread (totaly 3 java threads).
i insert print before the java thread start and in the run method, and i dont get the print in the run method.
e.g:
main thread:
a.start();
a.isAlive(); -> this one print true!!
and in a thread:
run()
{
System.out.println("start a"); -> this print i dont get
}
i run the same program on unix enviroment and it work o.k.
on nt enviroment using jre 1.3 and jre 1.1.7 - dont work.
there are several senarios in nt, that the small program do work, but i could not find the difrent when it work and not.
the senario that i have that this small program dont work, are those that the java thread are called before the start of the main c++ method. (they are called in the constractor of a global c++ object), but i have several other senarios like the above, that are called before the main c++ process start, that do work.
Asked:
2
1 Solution
class Test implements Runnable
{
Test()
{
Thread t = new Thread(this);
t.start();
}
run()
{
System.out.println("test")
}
public static void main(String arg[])
{
Test myTest = new Test();
}
}
This should work?
but then again I learned Jave from my dog.
{
Test()
{
Thread t = new Thread(this);
t.start();
}
run()
{
System.out.println("test")
}
public static void main(String arg[])
{
Test myTest = new Test();
}
}
This should work?
but then again I learned Jave from my dog.
Try:
class Test implements Runnable
{
private Thread t = null ;
public Test()
{
}
public void start()
{
if( t == null )
{
t = new Thread(this);
t.start();
}
}
public void run()
{
System.out.println( "test" ) ;
}
public void stop()
{
t = null ;
}
public static void main(String arg[])
{
Test myTest = new Test();
}
}
Tim.
class Test implements Runnable
{
private Thread t = null ;
public Test()
{
}
public void start()
{
if( t == null )
{
t = new Thread(this);
t.start();
}
}
public void run()
{
System.out.println( "test" ) ;
}
public void stop()
{
t = null ;
}
public static void main(String arg[])
{
Test myTest = new Test();
}
}
Tim.
No comment has been added lately, so it's time to clean up this TA.
I will leave a recommendation in the Cleanup topic area that this question is:
[points to TimYates]
Please leave any comments here within the next seven days.
PLEASE DO NOT ACCEPT THIS COMMENT AS AN ANSWER!
sudhakar_koundinya
EE Cleanup Volunteer
---------------------
If you feel that your question was not properly addressed, or that none of the comments received were appropriate answers, please post your concern in THIS thread.
I will leave a recommendation in the Cleanup topic area that this question is:
[points to TimYates]
Please leave any comments here within the next seven days.
PLEASE DO NOT ACCEPT THIS COMMENT AS AN ANSWER!
sudhakar_koundinya
EE Cleanup Volunteer
---------------------
If you feel that your question was not properly addressed, or that none of the comments received were appropriate answers, please post your concern in THIS thread.
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If you implement runnable, make sure you create your thread like:
a = new Thread( this ) ;
if you are extending thread, and overriding run() then it seems weird...can you post some code?
Good Luck,
Tim.