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Unformatted Input functions
Various unformatted input functions provided by C are:
1. getchar()
It is used to read value of a character variable. While using this function, we need to assign this function to the character variable whose value we want to read. The header file required for this function is <stdio.h>.
Program to demonstrate getchar() |
Output |
| #include<stdio.h> int main() { char n; printf(“\nEnter character=”); n=getchar(); printf(“\ncharacter=%c”,n); return (0); } |
Enter character=K character=K |
2. getch()
It is used to read value of a character variable but while inputting value cursor immediately jumps to next line without need to press enter key . Moreover it doesn’t display anything on screen.
| Program to demonstrate getch() | Output |
| #include<stdio.h> int main() { char n1; printf(“\nEnter character=”); n1=getch(); printf(“\nentered character=%c”,n1); return (0); } |
Enter character= character=K |
3. getche()
It is used to read value of a character variable. Cursor automatically jumps to next line when we type any character but it displays the typed character on screen
| Program to demonstrate getche() | Output |
| #include<stdio.h> #include<conio.h> int main() { char n; printf(“\nEnter character=”); n=getche(); printf(“\ncharacter=%c”,n); getch(); return (0); } |
Enter any character=H character=H |
4. gets()
It is used to read value of a string variable. It can also read blank space if any exists in the value. Header file for this function is <stdio.h>.
Read string variable using gets() |
Output |
| #include<stdio.h> void main() { char bname[30]; printf(“\nEnter book name=”); gets(bname); printf(“\nBook Name=%s”,bname); return (0); } |
Enter bookname=C Language Book Name=C Language |
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