Page 9 - PROGRAMMING IN C_Neat

9. Explain the formatted input and output functions in detail. ***

Formatted Input Function:
 scanf() function is called Formatted Input Function.
 General Form:

scanf(“control string”, &variable1, &variable2, … &variable n);

 General Form of control string;: %w data_type
Conversion Character Table:

Data Conversion
Type Character
char %c
int %d
float %f
string %s
 Example:
int a;
scanf(“%d”, &a);

Formatted Output Function:
 printf() function is called Formatted Output Function.
 General Form:

printf(“control string”, variable1, variable2, … variable n);

 General Form of control string: %w.p data_type
Conversion Character Table:

Data Conversion
Type Character
char %c
int %d
float %f
string %s

 Printing Integer:
Example:
int x = 2000; Output:
printf(“%d”, x);
 Printing Float: 2 0 0 0
Example:
float x = 123.4567 Output:
printf(“%8.4f”, x); 4 5 6 7
1 2 3 .
 Printing String:
Example:
name = “Kandan”; Output:
printf(“%s”, name); K a n d a n

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