Try following example to understand if statement. You can put the following code into a test.c file and then compile it and then run it.
#include <stdio.h>
main()
{
int cows = 6;
if (cows > 1)
printf("We have cows\n");
if (cows > 10)
printf("loads of them!\n");
else
printf("Executing else part...!\n");
if (cows == 5 )
{
printf("We have 5 cows\n");
}
else if( (cows == 6 )
{
printf("We have 6 cows\n");
}
}
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This will produce following result:
We have cows
Executing else part...!
We have 6 cows
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