Testing letters with logic operator and (&&) : Logic Operators « Operator « C Tutorial

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C Tutorial » Operator » Logic Operators

5.5.6.Testing letters with logic operator and (&&)

#include <stdio.h>

int main(void)

{

  char letter =0;                         



  printf("Enter an upper case letter:");  

  scanf(" %c", &letter);                  



  if ((letter >= 'A') && (letter <= 'Z')) 

  {

    letter += 'a'-'A';                    

    printf("You entered an uppercase %c.\n", letter);

  }

  else

    printf("You did not enter an uppercase letter.\n");

  return 0;

}

Enter an upper case letter:R
     You entered an uppercase r.

5.5.Logic Operators
	5.5.1.	Boolean Operator in C
	5.5.2.	Logical operator
	5.5.3.	Logical AND (&&) returns a true value if both relational expressions are true.
	5.5.4.	Short circuiting
	5.5.5.	Ternary operator
	5.5.6.	Testing letters with logic operator and (&&)
	5.5.7.	The \|\| is the logical OR operator.

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