native2ascii - Encoding Converter Command and Options

This section describes the native-to-ASCII encoding converter 'native2ascii' and its options. Non-ASCII characters in a Java source file must be converted into \udddd Unicode sequences before giving it to the Java compiler.

Warning: "native2ascii" has been discontinued since JDK 9. But if you still have JDK 1.8 installed, you can continue to use it to convert Java source from one encoding to another.

What Is "native2ascii"? "native2ascii" is a command line tool that reads a text file stored in a non-ASCII encoding and converts it to an ASCII text file. All non-ASCII characters will be converted into \udddd sequences, where dddd is the Unicode code value of the non-ASCII character.

"native2ascii" has been included in JDK installation since JDK 1.2. And it is represented by the %java_home%\bin\native2ascii.exe program file.

"native2ascii" is an important Java tool, because Java compiler and other Java tools can only process files which contain ASCII characters and \udddd Unicode code sequences. If you have any non-ASCII character strings written in a native encoding included in your Java source code, you need to run this "native2ascii" tool to convert your Java source code.

"native2ascii" has the following command syntax:

native2ascii [options] inputfile outputfile

where "options" is a list of these options:

Last update: 2018.

Table of Contents

 About This Book

 Java Tools Terminology

 Java Tools Included in JDK

 javac - The Java Program Compiler

 jar - The JAR File Tool

 jlink - The JRE Linker

 jmod - The JMOD File Tool

 jimage - The JIMAGE File Tool

 java - The Java Program Launcher

 jdb - The Java Debugger

 jcmd - The JVM Diagnostic Tool

 jconsole - Java Monitoring and Management Console

 jstat - JVM Statistics Monitoring Tool

 JVM Troubleshooting Tools

 jvisualvm (Java VisualVM) - JVM Visual Tool

 jmc - Java Mission Control

 javap - The Java Class File Disassembler

 keytool - Public Key Certificate Tool

 jarsigner - JAR File Signer

 jshell - Java Language Shell

native2ascii - Native-to-ASCII Encoding Converter

native2ascii - Encoding Converter Command and Options

 javac - Using CP1252 to Process Source File

 "native2ascii -encoding" - UTF-8 to \udddd Conversion

 Setting UTF-8 Encoding in PrintStream

 Converting \udddd Sequences Back with "-reverse" Option

 Outdated Tutorials

 References

 Full Version in PDF/EPUB