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Q) Develop a java application that performs the fallowing 2 tasks concurrently?



1) Printing number from 1 to 30
2) Printing number from 70 to 100
A)

                       

->it Runnable interface run () is the abstract method.
In Thread class, run () method is null method.
I.e.
run ()
{

}
->So, here no instructions are there in run method only flower braces are there.
->in our Thread class run () is overridden.
// MultiThreadingApplication.java

class MyThreadOne extends Thread
{
       public void run()
       {
              for (int i=1;i<=30;i++)
              System.out.println(i);
       }
}
class MyThreadTwo extends Thread
{
       public void run()
       {
              for(int i=70; i<=100;i++)
                     System.out.println(i);
       }
}


classMultiThreadingApplication {

       public static void main(String[] args) {
              MyThreadOne t1 = new MyThreadOne();
              MyThreadTwo t2 = new MyThreadTwo();
              t1.start();
              t2.start();
       }

}

->the run() method is the abstract method in Runnable interface. So, it’s access specifier is public. So, the Thread class is implement that run() as null method. Its access specifier is public when our class extends Thread method and overridden that run(). So, that access specifier is must public.
->the loop can’t break until condition not satisfy but in multi threading the loop will break. Because the CPU slicing is break the loop.
->hence two run() are there i.e. 2 flows are there. So, for two flows the CPU allocates it time for parallel execution by OS.

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