January 5, 2019January 5, 2019 ocjp

scanf() and gets() in C Language

Input Output in C

To get input we can use scanf() or gets() functions.

gets() is used only for String data type.

scanf() can be used for all data types with type specifiers like %d %c %f etc

One thing you have to note before using gets() is fflush(stdin).

fflush(stdin) function will flush the input

#include<stdio.h>
#include<conio.h>
void main()
{
	int x;
	char nm[12];
	clrscr();
	printf("\nEnter No :");
	scanf("%d",&x);
	printf("\nEnter Name :");
	scanf("%s",&nm); //& is optional for string
	//another method for getting string

	fflush(stdin); //flush previous input
	printf("\nEnter Name :");
	gets(nm);
	printf("\nName :%s",nm);
	getch();
}

If we don’t use fflush(stdin) then input for gets(nm) will be ‘enter’ that is pressed after scanf().