Character constant & String Constant in C

 Character constant:

A single character enclosed in two closing single quotes/ single inverted commas (’   ’) is said to be character constant. 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:   ۥrۥ           ۥ=ۥ            ۥAۥ

Invalid:                                    ۥ543ۥ        -     Length should be 1
                                                  "V"         -     Enclosed in single quotes  

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 known as ASCII value.

For example-  printf(“%d”,’a’);

So it prints 97 because lower case ’a’ ASCII value is 97

String Constant

• A set of characters enclosed in two closing double quotes is said to be string constant.
• A characters may be letters, numbers, special character and blank space.

Example:      "Vivekanad College"

"Hello!"

                                    "2022"

                                    "?....!"

                                    "4-2"

                                    "W"