1. Chapter 8
Characters
In Java single characters are represented using the data type char. Character constants are written as symbols enclosed in single quotes, for example, 'a', 'X', and '5'.
To represent characters in computer, U. S. computer manufacturers devised several schemes for encoding characters as integers.
One coding scheme widely used today is ASCII (American Standard Code for Information Interchange).
Intro to OOP w/Java--Wu

2. Chapter 8
ASCII Table
For example, character 'O' is 79 (row value 70 + col value 9 = 79). O 9 70
Intro to OOP w/Java--Wu

3. Character Translation
Chapter 8
Character Translation
Declaration and initialization
char ch1, ch2 = ‘X’;
Type conversion between int and char.
System.out.println("ASCII of X is " + (int) 'X' );
System.out.println("Char 88 is " + (char)88 );
Erf … out to reality ASCIITranslate.java
Intro to OOP w/Java--Wu

4. Character Comparison Spling … out to reality CharOrder.java
Chapter 8
Character Comparison
This comparison returns true because ASCII value of 'A' is 65 while that of 'c' is 99.
‘A’ < ‘c’
Spling … out to reality CharOrder.java
Intro to OOP w/Java--Wu

5. Special Characters These are also known as “escape characters”
Chapter 8
Special Characters
These are also known as “escape characters”
Written using a \ prefix
\t \n \b \g \’ \\
Spling … out to reality EscapeCharacters.java
Intro to OOP w/Java--Wu

6. The Character Class
The Character class in the java.lang package includes methods for manipulating character values.
Example, use isLetter to check if a character is a-z or A-Z
Zzzznicka … out to reality … CharGames.java

7. Chapter 8
Unicode
To accommodate the character symbols of non- English languages, the Unicode Consortium established the Unicode Worldwide Character Standard, commonly known as Unicode.
Intro to OOP w/Java--Wu