Integer constants must be digits only, entirely preceded by an optional minus sign.
Double constants must be digits only, with an optional decimal point, entirely preceded by an optional minus sign.
String constants are entered in double quotes, e.g. "hello there".
To include a double quote in a string, repeat the double quote. For example
John said "Hi" to me.
"John said ""Hi"" to me."
To include the white space characters 'tab' and 'new line', use '\t' and '\n', respectively. To include a backslash '\', use '\\'. For example
Go to the following location on your computer
"Go to the following location on your computer\nC:\\Program Files\\"