MultiThreading

Class Thread

• This is the main class on which Java's Multithreading system is based. 

• Thread ( )
• creates a thread whose run method will be executed when the thread is started
• Thread ( Runnable target )
• creates a thread which will start run method of target when the thread is started.

• void start()
• This method causes the thread to begin execution;
• Internally the Java Virtual Machine calls the run method of this thread.
• void run()
• If this thread was constructed using a separate Runnable target object, then that Runnable object's run method is called; otherwise, this method is executed when thread is started.
• void stop()
• It is used to stop the thread(depricated).
• void suspend()
• Is used to suspend the thread(depricated).
• void resume()
• Is used to resume the suspended thread(depricated).
• static void sleep(long millis)
• This method causes the currently executing thread to sleep for the specified number of milliseconds.
• void setPriority(int newPriority)
• This method changes the priority of this thread.
• int getPriority( )
• This method Returns this thread's priority.
• void setDaemon(boolean on)
• It marks this thread as either a daemon thread or a user thread.
• Daemon threads are automatically terminated when all user thread has completed their execution.
• static void yield( )
• This method causes the currently executing thread object to temporarily pause and allow other threads to execute.
• void join( )
• Waits for this thread to die.
• void join(long millis)
• Waits at most specified milliseconds for this thread to die.
• static int activeCount()
• This method returns the number of active threads in the current thread's thread group.
• boolean isAlive()
• tests if the thread is alive.

 class MyTask extends Thread
 {
    public void run()
   {
        for(int i=1;i<=1000;i++)
	        System.out.print("#");
    }
 }
 class YourTask extends Thread
 {
    public void run()
    {
        for(int i=1;i<=1000;i++)
           System.out.print(".");
    }
 }
 class demo
 {
    public static void main(String args[])
    {
        MyTask tsk1=new MyTask();
        YourTask tsk2=new YourTask();
        tsk1.start();
        tsk2.start();
    }
 }

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 class demo
 {
    public static void main(String args[]) throws Exception
	{
	    System.out.println("CCIT");
	    Thread.sleep(5000);
	    System.out.println("Amravati");
	}
 }   
  

  CCIT
Amravati

 class MyTask extends Thread
 {
    public void run()
   {
        for(int i=1;i<=10000;i++)
	        System.out.print("-");
    }
 }
 class YourTask extends Thread
 {
    public void run()
    {
        for(int i=1;i<=10000;i++)
           System.out.print("=");
     }
 }
 class demo
 {
    public static void main(String args[])
    {
        MyTask tsk1=new MyTask();
        YourTask tsk2=new YourTask();
        tsk1.setPriority(10);
        tsk2.setPriority(1);
        tsk1.start();
        tsk2.start();
    }
 }

 class MyTask extends Thread
 {
    public void run()
    {
        for(int i=1;i<=100;i++)
	        System.out.print(i+"- ");
   }
 }
 class YourTask extends Thread
 {
    public void run()
    {
        for(int i=1;i<=1000;i++)
	        System.out.print(i+"= ");
    }
 }
 class demo
 {
    public static void main(String args[ ])
	{
	    MyTask tsk1=new MyTask();	
	    YourTask tsk2=new YourTask();	
	    tsk2.setDaemon(true);
	    tsk1.start();
	    tsk2.start();
	}
 }