Characters

Characters

A character is represented internally as a number � an integer, in fact. There are various "universal" codes that can be used to represent chars:

ASCII (256 chars)
EBCDIC
Unicode
- Allows up to 65,536 chars.
- About 35,000 currently in use.
- First 256 are the same as ASCII codes (for compatibility).

To declare a variable to be of character type:

    private char letter;

Use single quotes for character constants: 'H' is a char; "H" is a String:

    char letter = 'H';

Demo 4. Using charAt and information about characters to fix the color mixer demo from weeks ago. See the color mixer demo. Notice how it behaves if you include a non-digit in the input.

Characters