/*
Program: Write a program to calculate the size in bytes required by data
items and in-built data types of C using the "sizeof" operator.
Author: www.atnyla.com
*/
#include "stdio.h"
int main()
{
printf("char size = %d bytes\n", sizeof(char));
printf("short size = %d bytes\n", sizeof(short));
printf("int size = %d bytes\n", sizeof(int));
printf("long size = %d bytes\n", sizeof(long));
printf("float size = %d bytes\n", sizeof(float));
printf("double size = %d bytes\n", sizeof(double));
printf("1.55 size = %d bytes\n", sizeof(1.55));
printf("1.55L size = %d bytes\n", sizeof(1.55L));
printf("HELLO size = %d bytes\n", sizeof("HELLO"));
return 0;
} char size = 1 bytes
short size = 2 bytes
int size = 4 bytes
long size = 4 bytes
float size = 4 bytes
double size = 8 bytes
1.55 size = 8 bytes
1.55L size = 12 bytes
HELLO size = 6 bytes
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First read the algorithm, then study the program code line by line. After that, compare the code with the output and finally go through the explanation. This approach helps learners understand both the logic and the implementation properly.
After understanding this example, try to rewrite the same program without looking at the code. Then change some values or logic and run it again. This helps improve confidence and keeps learners engaged on the page for longer.