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Hello everyone.



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So in this lesson we will learn what our streams so streams are actually your flow of data.



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So flow of data are called streams not the flow of data can be of two types.



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So first the flow of data can be coming through our program.



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And the second ways the flow of data might lead you to a destination.



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So basically this is your program.



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Now what can happen.



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So this is the stream coming in so stream is simply a flow of data.



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So stream is coming in to your program.



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And similarly the stream can go out and it can reach our destination.



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So now this is your program.



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So in how many ways we can take input so streams are actually can be used for two things.



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First taking input from the external source and second is giving output to the external source so external



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source can be key keyboard so we can take input from keyboard how we will take input we will take and



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producing C in.



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And similarly we can give output to a letter to a monitor.



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And how do we do that.



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I will use c out simple.



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Similarly what are the other ways of taking input.



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So basically you can take.



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So this is your network.



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So basically you can take input from the network.



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You can receive data from the network and you can send the data back to the network.



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Similarly it can happen.



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So let us consider a file.



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So this is your file where you can do so.



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Basically you can read data from file and similarly you can write data to a file so these all streams



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seems to simply the flow of data now basically.



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So there are two types of stream input output stream.



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So what is the meaning of input output stream.



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So the input stream is actually used to take data from the external source.



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And similarly the output stream is to send the data to the extra knows whose it is very simple.



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So this is called input output stream and it is off.



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It is integration of two types input stream to take data from the external source and output stream



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to send data to the external source.



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So in C++ this input output stream is actually implemented and the name of the class is actually a US.



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So the name of the classes IO is input output stream and this input output stream is categorized into



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two types.



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So first one is ice stream input stream and the name of the second classes or stream output stream.



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So this ice cream is actually input stream and this stream is actually output stream.



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So this is a glass ice stream is a glass.



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Similarly all stream is also a glass and see in so I remember seeing so scene is an object of ice cream



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glass and similarly C out is an object of the stream glass.



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So C out is an object of always steam glass output steam glass so similarly for taking input from a



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file for reading and writing to a file.



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I have glasses input file stream to read data from the file and similarly for writing data to a file.



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I have the class output file stream so this is input file stream and this is output file stream.



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Simple.



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So basically scene is used to take input from the keyboard and similarly see outward display the data



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to one wanted to simple.



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So here.



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So this is your monitor.



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So what is happening here.



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So this scene is an object of



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ice cream glass and put stream glass.



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And similarly this icy out is an object of always stream glass.



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Simple now these things iPhone keyboard and and so forth file the glass at the name of the classes at



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input file stream and output file stream so output file and stream so in the next video we will learn



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file handling in C++



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so next we do we will on this topic file handling in C++ so I will meet you in the next one.



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Bye.