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Thread: What is The use of Thread class constructors?

  1. #1
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    Default What is The use of Thread class constructors?

    Hi!My doubt is on Thread class constructors
    1)public Thread()
    2)public Thread(String name)
    The above two are two constructors of thread class.
    First constructor is used to create object of thread class.
    Second constructor is also used to create object of thread class with required name.
    If we write
    1)Thread t1=new Thread();
    This creates a thread class object t1.
    2)Thread t2=newThread(“MYTHREAD”);
    This also creates Thread class object t2 .It also creates thread with name "MYTHREAD".
    My questions are
    1)What is the benefit of above t1,t2;
    2)How can we use the thread class objects t1,t2?
    3)Is it possible to execute run method of the thread "MYMTHREAD"?
    4)Suppose we have extended class named “a” from Thread class like below.
    Then how can we use t1,t2 on below class “a”?
    Is it possible to create thread to below class “a” with required name by using above constructors?
    Class a extends Thread
    {
    Public void run()
    {
    System.out.println(“Hi”);
    }
    }


  2. #2
    Super Moderator copeg's Avatar
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    Default Re: What is The use of Thread class constructors?

    1) The first has a name assigned to it by the JVM, the second has a name you assigned. If you are ever which to access the Thread by name at a later date, knowing that name (eg assigning the Thread a name) will allow you to do so. But read the API beforehand:
    http://docs.oracle.com/javase/6/docs...ng/Thread.html
    2)
    Thread (Java Platform SE 6)
    Lesson: Concurrency (The Java™ Tutorials > Essential Classes)
    3) See (2)
    4) What did you try? Did it work? Compile? Run properly?

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    Default 2-what is the use of thread class constructors

    Hi !last time I asked one doubt with heading “what is the use of thread class constructors”.But I could not ask that doubt in a right
    manner.Now I am asking the same doubt in a simple and clear manner.My doubt is on Thread class constructors. My doubts based on below simple code.
    In below code ,in main method there is a statement as ” Thread C4=new Thread (new first(),"FIRSTTHREAD");”
    This Statement Will create a Thread FIRSTTHREAD for the class “first”.
    Here we used Thread class constructor public Thread(Runnable target,String name);
    There are some other constructors in Thread class like
    1)public Thread();
    2)public Thread(String name);
    The first constructor is used to create an object of Thread class.
    The second constructor is used to create an object of Thread class but with required name.
    Then my question is
    -->What is the benefit of creating object to thread class?
    -->A class named with” four” is available in below code.By using second constructor of above constructors is it possible to write “four f1=new four(“MYTHREAD”);”
    ------------------------------------------------------
    class first implements Runnable 
       {  
       public void run() 
       {  
       System.out.println(Thread.currentThread().getName());
       }  
       }  
       class four extends Thread  
       {  
      public void run() 
      {  
      System.out.println(Thread.currentThread().getName()); 
      }
      } 
      class Third  
      { 
      public static void main(String args[])  
      {  
     
     Thread C4=new Thread (new first(),"FirstThread");
     C4.start(); 
     
     }  
     } 
     
     Output:  
     
     FirstThread

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    Default Re: 2-what is the use of thread class constructors


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    Default Re: 2-what is the use of thread class constructors

    Quote Originally Posted by me_shankara View Post
    Hi !last time I asked one doubt with heading “what is the use of thread class constructors”.
    Yes you did. Please see the reply in post #2.
    If you do not understand please ask another question.

    Threads merged.

  6. The Following User Says Thank You to jps For This Useful Post:

    copeg (May 7th, 2013)

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