regarding threads

[chinnu&manu]

what is the use of threads in realtime applications and please infirm me any example

[andbin]

what is the use of threads in realtime applications and please infirm me any example

Threads, by itself, have nothing to do with "realtime" applications. Said in another way, a realtime system/application doesn't necessarily imply or require multi-threading.

The concept of "realtime" is very specific and I suspect you should understand it better. In a realtime system/application there are very strict requirements about response times. Things must happen at a precise times. For example, when there is an external event, the system/application must respond within a precise number eg. of milliseconds.

These things cannot be easily and precisely done with Java, since there are many aspects (JIT, garbage collection, system load, etc) that can't be controlled or limited. So for my knowledge/opinion (I never developed "realtime" applications), Java is not normally used to develop "realtime" applications.

[chinnu&manu]

thanks
i am expecting a real time program ...please any one find the program intimate me

[andbin]

i am expecting a real time program

Please, clarify what type of application you would like to develop, what does it do in general, what(/where) are inputs/outputs, etc..
Without these informations it's very difficult to continue this question.

[chinnu&manu]

i want execute 5 events that 5 events i have to place in a queue...
then this will be picked by a program based on the priority
like....
i want to do two operations 2nd one is depends on first one output
so in this case thread should execute 1st operation

[andbin]

i want execute 5 events that 5 events i have to place in a queue...
then this will be picked by a program based on the priority
like....
i want to do two operations 2nd one is depends on first one output
so in this case thread should execute 1st operation

Firstly, this (as you have explained) has nothing to do with "realtime". You have not told about precise timings, response times and so on.

Secondly, this is a "normal" question about tasks execution. And the fact that one task depends on the output of another does not necessarily imply multi-threading.

[chinnu&manu]

ok thanks....