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';

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