Running different set of methods on the same class via threads

Question

Hello all,
I have this issue that I am trying to deal with. It looks pretty simple to me, but maybe just a mental block I guess :)
Now the code below will give you an idea of what I am trying to achieve. I am not sure if its possible or if there is some other better way to do this. Any help will be appreciated.
Thanks
public class TestClass extends Thread{
     public TestClass(){
     // Assume something goes in here.
     public void abc(){
          System.out.println("In abc");
     public void xyz(){
          System.out.println("In xyz");
     public void run(){
     //What do I put here, since my call is specific.
     public static void main(String args[]){
          TestClass t1 = new TestClass();
          t1.start();// I want t1 to call only abc()
          TestClass t2 = new TestClass();
          t2.start();// I want t2 to call only xyz
}Edited by: mikkin on Mar 12, 2009 3:00 PM

Answer 1

kogose wrote:
you can use the Reflection API to make the desired method an instance variable:Whoa, that's a pretty big case of over-engineering (or under-engineering, depending on how you look at it) and abuse of Reflection. The real problem in the original post is that Thread isn't being used properly. You almost never want to subclass Thread, for reasons like these: your runnable target should be separate from the thread. I would organize your code like this:
public class TestClass {
   public TestClass() {
      // Assume something goes in here.
   public void abc() {
      System.out.println("In abc");
   public void xyz() {
      System.out.println("In xyz");
   public static void main(String args[]) {
      final TestClass t1 = new TestClass();
      final TestClass t2 = new TestClass();
      new Thread(new Runnable() {
         public void run() { t1.abc(); }
      }, "t1Thread").start();
      new Thread(new Runnable() {
         public void run() { t2.xyz(); }
      }, "t2Thread").start();                   
   }