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Scanf ,Printf, CLRSCR, Getch, & Comments in C

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Tekslate

Published Date

21st September, 2018

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What are Scanf ,Printf, CLRSCR, Getch, & Comments in C Language

Scanf:-

It is a predefined f’n. by using this pre-defined f’n we can read the data from user.

  • Scanf f’n can any no.of arguments but 1st argument must be within the double quotes & remaining all arguments should separated with comma(,)
  • When we are working with scanf f’n with in the double only. i.e what type of data we are reading same type of format specifier is required
  • If scanf fun argument list should be contains & symbols.

 

Printf():-

It is a pre-defined f’n, by using this f’n we can print the data on console.

  • The scientific name of the monitor is called “console”
  • When we are working with the printf, it can take any no.of arguments but 1st argument must be within the double codes and every argument should be separated with ‘,’
  • Within the double codes whatever we pass it pins assist i.e. if any format specifiers are there then copy that type of values.

 

CLRSCR:-

By using this predefined f’n we can clear console data.

  • Using clrscr is always optional but it must be required to place after declaration part only.

   

Getch:-

It is a predefined f’n, by using this predefined f’n we can read a char from keyboard.

  • Generally we are planning the getch at end of the program. To wait the o/p screen until we are passing any char’s from keyboard.

 

Comments:-

When we are using comments that specific part of the prog will ignore by compiler.

  • Generally comments are used to provide the description about the logic
  • In a CPU they are 2 types of comments are possible i.e single line comments and multiple line. Comments.
  • Single line comments can be provide by using two forward slashes(//)
  • Multiple line comments can be provided by using /*………….*/
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