JDK (Java Development Kit) Tutorials

∟Character Set Encoding Maps

This chapter provides tutorial notes and example codes on character set encoding maps. Topics include collection types: encoding map analyzer program; analyzing and print encoding maps for US-ASCII, ISO-8859-1/Latin 1, Windows CP1252, Unicode UTF-8, UTF-16, UTF-16LE, UTF-16BE; sample program to count valid characters in each character set encoding.

Character Set Encoding Map Analyzer

Character Set Encoding Maps - US-ASCII and ISO-8859-1/Latin 1

Character Set Encoding Maps - CP1252/Windows-1252

Character Set Encoding Maps - Unicode UTF-8

Character Set Encoding Maps - Unicode UTF-16, UTF-16LE, UTF-16BE

Character Counter Program for Any Given Encoding

Character Set Encoding Comparison

Conclusion:

• A simple Java program can be used to print the encoding map of any given encoding supported by JDK.
• US-ASCII encoding has a code point range of 0x0000 - 0x007F.
• ISO-8859-1/Latin 1 encoding has a code point range of 0x0000 - 0x00FF.
• CP1252/Windows-1252 encoding has a code point range of 0x0000 - 0x00FF plus some values outside this range.
• UTF-8 encoding has a code point range of 0x0000 - 0x00FF except 0xD800 - 0xDFFF.
• A simple Java program can be used to count valid characters of any given encoding.

Notes and sample codes bellow are based on JDK/J2SDK 1.4.1_01.

Table of Contents

 About This JDK Tutorial Book

 Downloading and Installing JDK 1.3.1 on Windows

 Downloading and Installing JDK 1.4.1 on Windows

 Downloading and Installing JDK 1.5.0 on Windows

 Downloading and Installing JDK 1.6.2 on Windows

 Date, Time and Calendar Classes

 Date and Time Object and String Conversion

 Number Object and Numeric String Conversion

 Locales, Localization Methods and Resource Bundles

 Calling and Importing Classes Defined in Unnamed Packages

 HashSet, Vector, HashMap and Collection Classes

 Character Set Encoding Classes and Methods

►Character Set Encoding Maps

 Encoding Conversion Programs for Encoded Text Files

 Socket Network Communication

 Datagram Network Communication

 DOM (Document Object Model) - API for XML Files

 SAX (Simple API for XML)

 DTD (Document Type Definition) - XML Validation

 XSD (XML Schema Definition) - XML Validation

 XSL (Extensible Stylesheet Language)

 Message Digest Algorithm Implementations in JDK

 Private key and Public Key Pair Generation

 PKCS#8/X.509 Private/Public Encoding Standards

 Digital Signature Algorithm and Sample Program

 "keytool" Commands and "keystore" Files

 KeyStore and Certificate Classes

 Secret Key Generation and Management

 Cipher - Secret Key Encryption and Decryption

 The SSL (Secure Socket Layer) Protocol

 SSL Socket Communication Testing Programs

 SSL Client Authentication

 HTTPS (Hypertext Transfer Protocol Secure)

 References

 PDF Printing Version