25/02/25
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                                        Multithreading
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Q)What are the similarities between multitasking and multithreading?
=>Both are meant for performing multiple tasks concurrently.

=>Both are meant for optimum utlization of CPU.

=>In both the cases Operating System Support is required for
time sharing/slicing and context switching.

Q)What are the differences between multitasking and multithreading?

 =>process based multiple concurrent tasks performing mechanism is
multitasking. "n" processes for "n" concurrent tasks.

=>thread based (sub process based) multiple concurrent tasks performing
mechanism is multithreading. 1 process for "n" concurrent tasks.

=>No programming effort is required for multitasking.Operating
system implicitly provides the support. Where as, for multithreading
programming effort is required.

Q)What is a thread?

=>A single sequential flow of control is nothing but a thread.
                                OR
=>An independent path of execution is known as a thread.

=>In a Java application, a thread is represented as an object(instance).
Note:- A thread is a sub process

Q)What is a single threaded application?
=>An application is said to be single threaded if it has only one sequential flow of control (only one independent path of execution.

Q)What is the limitation of a single threaded application?
   =>In a single threaded application, we can't perform multiple
   parallel tasks.
Q)What is a multithreaded application?
=>An application is said to be multi threaded if it has muliple sequential flows of control(multiple independent paths of execution).

=>A Multithreaded application can perform multiple concurrent jobs.

Q)What is multithreading?
=>The mechanism of making an application multithreaded is nothing but
multithreading.

Q)How to make an application multithreaded?

Step 1:-    Write a Java class that extends java.lang.Thread class
or that implements java.lang.Runnable interface


Step 2:- Override run method in the above class.
             =>write task performing code in run method either directly
	     or indirectly

Note:- run method is known as the body of the thread.


Step 3:- Create as many thread objects as the application requires.


Step 4:- activate the threads.