Cin Input Statement
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  • What you'll learn
    • ✓What is an input statement in C++?
    ✓What is the cin (code input) in C++?
    ✓Is using "cin >> var" as a conditional statement practical?
    ✓cin Statement and its Use in C++ Program
    ✓How to write input statement in c++
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  • C++ cin statement is the instance of the class istream and is used to read input from the standard input device which is usually a keyboard. The stream extraction operator(>>) is used along with the object cin for reading inputs.
  • iostream: iostream stands for standard input-output stream. This header file contains definitions of objects like cin, cout, cerr, etc. iomanip: iomanip stands for input-output manipulators. The methods declared in these files are used for manipulating streams.
  • character input Hence cin means "character input". The cin object is used along with the extraction operator >> in order to receive a stream of characters.
  • In computer science, the general meaning of input is to provide or give something to the computer, in other words, when a computer or device is receiving a command or signal from outer sources, the event is referred to as input to the device. Fingerprint reader.
  • cin >> num1 returns a reference to cin . If cin >> num1 is able to read an int , cin continues to be in a good state; if the attempt at input fails, cin is set to a state that is not good. In if (cin) , the condition is true if cin is in a good state.
  • The cin. get() C++ function is used to access the character array. This is a basic function in the c++ programming language that is used to get input from the user. The cin. get() C++ function also includes the white space characters into it
  • The bitwise shift operators are the right-shift operator ( >> ), which moves the bits of an integer or enumeration type expression to the right, and the left-shift operator ( << ), which moves the bits to the left.
  • Computers. to enter (data) into a computer for processing. to contribute (ideas, information, or suggestions) to a project, discussion, etc.
  • Input - the information entered into a computer system, examples include: typed text, mouse clicks, etc. Processing - the process of transforming input information into and output. Output – the visual, auditory, or tactile perceptions provided by the computer after processing the provided information.
  • Two colons (::) are used in C++ as a scope resolution operator. This operator gives you more freedom in naming your variables by letting you distinguish between variables with the same name.

Requirement

The c++ cin statement is an instance of the class iostream and is used to read data from a standard input device, which is usually a keyboard. For reading inputs, the extraction operator(>>) is combined with the object cin.

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