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Display output in C- printf() function
printf() function is used to display output in C. Syntax of printf function() is:
printf(“Control string”, arg1,arg2……);
Control string specifies the format to enter the data.
arg1,arg2,….. are constants, expression or variables whose values should be displayed.
1. print int data:
Format Specifier: %d
| Display int values. |
Output |
| #include<stdio.h> int main() { int a=4258; |
|
| printf(“%d”,a); | 4258 /*Value is fully shown*/ |
| printf(“%6d”,a); | 4258 /*2 spaces in the beginning*/ |
| printf(“%06d”,a); | 004258 /*0 zeros in the beginning*/ |
| printf(“%-6d”,a); | 4258 /*2 spaces at the end*/ |
| printf(“%3d”,a); | 4258 /*Value is fully shown*/ |
| return(0); } |
2. print short type data:
Format Specifier: %hd
| Display short type data. |
Output |
| #include<stdio.h> int main() { int a=4258; |
|
| printf(“%hd”,a); | 4258 /*Value is fully shown*/ |
| printf(“%6hd”,a); | 4258 /*2 spaces in the beginning*/ |
| printf(“%06hd”,a); | 004258 /*0 zeros in the beginning*/ |
| printf(“%-6hd”,a); | 4258 /*2 spaces at the end*/ |
| printf(“%3hd”,a); | 4258 /*Value is fully shown*/ |
| return(0); } |
3. Print long type data:
Format Specifier: %ld
Display long type data. |
Output |
| #include<stdio.h> int main() { long int a=4258 |
|
| printf(“%ld”,a); | 4258 /*Value is fully shown*/ |
| printf(“%6lhd”,a); | 4258 /*2 spaces in the beginning*/ |
| printf(“%06lhd”,a); | 004258 /*0 zeros in the beginning*/ |
| printf(“%-6ld”,a); | 4258 /*2 spaces at the end*/ |
| printf(“%3ld”,a); | 4258 /*Value is fully shown*/ |
| return(0); } |
4. Print float data
Format Specifier: %f
| Display float data |
Output |
| #include<stdio.h> int main() { float n=15.156415; |
|
| printf(“%f”,n); | 15.156415; |
| printf(“%12.3f”,n); | 15.156415 /*3 spaces at beginning*/ |
| printf(“%-7.2f”,n); | 15.16 /*2 digits after decimal point along with 2 spaces at the end*/ |
| printf(“%7.2f”,n); | 15.16 /*2 digits after decimal point along with 2 spaces at the beginning*/ |
| printf(“%e”,n); | 1.515641E+01; /*Value in exponent form*/ |
| return(0); } |
5. Print long double data
Format Specifier: %Lf or %e
| Display long double data |
Output |
| #include<stdio.h> int main() { long double n=15.156415; |
|
| printf(“%lf”,n); | 15.156415; |
| printf(“%12.3lf”,n); | 15.156415 /*3 spaces at beginning*/ |
| printf(“%-7.2lf”,n); | 15.16 /*2 digits after decimal point along with 2 spaces at the end*/ |
| printf(“%7.2lf”,n); | 15.16 /*2 digits after decimal point along with 2 spaces at the beginning*/ |
| printf(“%e”,n); | 1.515641E+01; /*Value in exponent form*/ |
| return(0); } |
6. Print char data
Format Specifier: %c
| Display char type data | Output |
| #include<stdio.h> int main() { char gender=’M’; |
|
| printf(“%c”,gender); | M |
| printf(“%4c”,gender); | M /*3 spaces before M*/ |
| printf(“%-4c”,gender); | M /*3 spaces after M*/ |
| return(0); } |
7. Print string data
Format Specifier: %s
| Display string data |
Output |
| #include<stdio.h> int main() { char Bname[ ]=”CLanguage”; |
|
| printf(“%s”,Bname); | CLanguage |
| printf(“%11s”,Bname); | CLanguage /*2 spaces in beginning*/ |
| printf(“%-11s”,Bname); | CLanguage /*2 spaces at end*/ |
| printf(“%5.3s”,Bname); | CLa /*Total 5 spaces with first three characters shown*/ |
| return(0); } |
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