Character:    A character denotes an alphabet, digit or a special character.

Single Character constants:   A single character constant or character constant is a single alphabet, a single digit or a single special symbol enclosed within single inverted commas. Both the inverted commas should point to the left.

For example, ۥAۥ is a valid character constant whereas ‛Aۥ is not. Note that the character constant ۥ 5ۥ is not the same as the number 5.

Valid Character Constants:                             ۥmۥ           ۥ=ۥ            ۥAۥ

ۥInvalid:                                                                 ۥ123ۥ        -     Length should be 1
                                                                               "A"           -     Enclosed in single quotes  

Note: - Each single character constant has an integer value that is determined by the computer’s particular character set.

Rules for Constructing Single Character constants

1.     A single character constant or character constant is a single alphabet, a single digit or a single special symbol enclosed within single inverted commas. Both the
        inverted commas should point to the left.

2.    The maximum length of a single character constant can be one character.

3.    Each character constant has an integer value that is determined by the computer’s particular character set.

Questions

1. Define Character (Or) What is a character?
2. What is a Single Character Constant? Give valid and Invalid constants?
   
3. State the rules for constructing single character constants.