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datatypes 2

let us understand input/output instruction:-

1)Input instruction:- to give an input in c program, input   instuction is used which is done by scanf() method. It is not a keyword.
  • Syntax of scanf:-
  •     scanf("format specifier",&variable name);
  • where format specifier are %d,%f etc for int,float value respectively 
  • example:-



2) Output instruction:- to display anything on the screen input instruction is used which is done by 
printf() method. 
  • inside double " " quotes everyrhing is string.
  • Syntax:-
    • printf(" any thing ");
  • example:-
note:- for input output stdio.h header file is used and getch() is used for to hold the screen that's why we seen an output

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