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Threading

Posted on 2007-04-11
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Last Modified: 2011-09-20
I need to write a piece of code that will spawn a thread that will read in information from an inputstream. How can I create a thread that will execute specific code while I run other code in my main program?
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Question by:strickdd
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7 Comments
 
LVL 86

Accepted Solution

by:
CEHJ earned 250 total points
ID: 18892138
new Thread() {
    public void run() {
        // Do it
    }
}.start();
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LVL 28

Author Comment

by:strickdd
ID: 18896973
So whatever code I want to do in the thread goes where "//Do it" is. I don't have to create a separate class or anything? Will the rest of the code  after this continue on once this thread is going? For example:

int temp = 0;

new Thread() {
    public void run() {
        // Do it
    }
}.start();

//will this execute?
temp = 1 * 2;
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LVL 6

Assisted Solution

by:SamsonChung
SamsonChung earned 250 total points
ID: 18900452
Strickdd, CEHJ's method is the quick and dirty way,
However, if you want, you can do the following

public class mythread extends Thread{
  //thread settings for your own thread
  boolean something
  public mythread(){
    //constructor of your own thread
  }
  public void run(){
    while (something){
      //read from System In, and other stuff
    }
  }
  public void synchronize stopme(){
    something = false;
  }
}

then you create this mythread as an object and start it.
then when you want to stop it, just call threadobject.stopme()
or add and extra while(true) Loop while sleep(1000) in the run method, so you can pause it, and restart it in your code.
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LVL 86

Expert Comment

by:CEHJ
ID: 18902214
>>CEHJ's method is the quick and dirty way,

What makes you say that?

>>then when you want to stop it, just call threadobject.stopme()

You can only do that with something that's 'perpetual' anyway or it won't help you


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LVL 28

Author Comment

by:strickdd
ID: 18904883
Thank you both for your solution. The reason I split the points is the Samson's was more complete and I ended up using his so I could manually stop the thread. CEHJ, your solution worked, but I was unable to use it with the lack of a stop method.

Thank you both for you help!
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LVL 6

Expert Comment

by:SamsonChung
ID: 18905438
CEHJ,

Just to let you know....
 quick and dirty way, IMHO, Fast, efficent, to the point, However, difficult to debug or learn. (quick and Dirty!!)
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LVL 6

Expert Comment

by:SamsonChung
ID: 18905440
strickdd,

Thanks, have fun in the mass world for Java Threads....
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