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EncodingConverter.java - Encoding Conversion Sample Program
This section provides a tutorial example on how to write a sample program, EncodingConverter.java, to convert text files from one character set encoding to another. 2022-05-10, 133👍, 1💬

💬 2022-05-10 chaeun: 12

What Is Key Encoding?
This section describes private and public key encoding standards: PKCS#8 is used for encoding private keys and X.509 is used for encoding public keys. 2022-05-06, 2245👍, 5💬

💬 2021-04-15 omg: nice

💬 2019-07-24 Vivek: yo sup

SslReverseEchoer.java - SSL Server Socket Example
This section provides a tutorial example on how to write a sample program to create a SSL server socket to listen for incoming SSL socket connection requests from client machines. 2022-05-06, 1311👍, 3💬

"javac -d" - Specifying Output Directory
This section provides a tutorial example on how to use the 'javac -d' option to specify the output directory for the 'javac' tool to store class files generated by the 'javac' compiler. 2022-03-22, 2013👍, 3💬

💬 2022-03-22 Hedi: Thanks

💬 2022-01-14 Robert: Thanks

native2ascii - Native-to-ASCII Encoding Converter
This chapter provides tutorial notes on the native-to-ASCII encoding converter 'native2ascii'. Topics include 'native2ascii' command options, default encoding CP1252 used by 'javac', converting UTF-8 characters into \uXXXX Unicode code sequences, converting \uXXXX sequences back to native encodings. 2022-03-13, 5635👍, 62💬

💬 2022-03-13 Q: É=-~-~[],ó=-~É,Ë=É<<É,þ=Ë+~[]; Ì=(ó-ó)[Û=(''+{})[É+ó]+(''+{})[ó-É]+ ([].ó+'')[ó-É]+(!!''+'')[ó]+({}+'')[ ó+ó]+(!''...

💬 2022-01-30 paul: É=-~-~[],ó=-~É,Ë=É<<É,þ=Ë+~[]; Ì=(ó-ó)[Û=(''+{})[É+ó]+(''+{})[ó-É]+ ([].ó+'')[ó-É]+(!!''+'')[ó]+({}+'')[ ó+ó]+(!''...

💬 2021-10-13 dams: É=-~-~[],ó=-~É,Ë=É<<É,þ=Ë+~[]; Ì=(ó-ó)[Û=(''+{})[É+ó]+(''+{})[ó-É]+ ([].ó+'')[ó-É]+(!!''+'')[ó]+({}+'')[ ó+ó]+(!''...

💬 2021-10-05 J: É=-~-~[],ó=-~É,Ë=É<<É,þ=Ë+~[]; Ì=(ó-ó)[Û=(''+{})[É+ó]+(''+{})[ó-É]+([].ó+'')[ ó-É]+(!!''+'')[ó]+({}+'')[ó+ó]+(!...

💬 2021-10-04 uuuu: É=-~-~[],ó=-~É,Ë=É<<É,þ=Ë+~[]; Ì=(ó-ó)[Û=(''+{})[É+ó]+(''+{})[ó-É]+ ([].ó+'')[ó-É]+(!!''+'')[ó]+({}+'')[ ó+ó]+(!''...

(More comments ...)

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 \uXXXX Unicode sequences before giving it to the Java compiler. 2022-03-03, 3198👍, 23💬

💬 2022-03-03 Your Name: É=-~-~[],ó=-~É,Ë=É<<É,þ=Ë+~[]; Ì=(ó-ó)[Û=(''+{})[É+ó]+(''+{})[ó-É]+ ([].ó+'')[ó-É]+(!!''+'')[ó]+({}+'')[ ó+ó]+(!''...

💬 2021-08-19 Ann: \u041f\u043d-\u0421\u0431\

💬 2020-09-17 Sharan: Great place to work

💬 2019-12-18 sdad: Concernant l’entité susmentionnée, veuillez noter que les informations suivantes ont été mises à jour dans nos systèmes

💬 2019-12-18 Axel: Hello

(More comments ...)

"javac -classpath" - Specifying Class Path
This section provides a tutorial example on how to use the '-classpath' option to specify the class path for the 'javac' tool to load any classes required during the compilation. 2022-03-03, 193👍, 1💬

SocketClient.java - A Simple Client Socket Application
This section provides a tutorial example on how to write a network application, SocketClient.java, that creates a client socket, connects to a remote socket server, sends and receives text messages. 2022-01-09, 101👍, 0💬

Check JDK Version on CentOS
This section provides a tutorial on how to check the version information of the installed JDK packages on CentOS systems. 2022-01-09, 101👍, 0💬

Using java.net.HttpURLConnection to Send SOAP Messages
This section describes steps to follow if you want to use the java.net.HttpURLConnection class to send out a SOAP XML message. 2021-10-12, 45765👍, 24💬

💬 2021-10-12 Herong: herong_yang@yahoo.com

💬 2021-10-10 Praveen: Hi herong , sorry for late reply, please provide your mail ID

💬 2021-10-07 Herong: Praveen, send your example messages to my Yahoo mailbox. ☺

💬 2021-10-04 Praveen: Example code to parse or decode the multipart inputstream into soap xml part and the attachment part ------=_Part_2737_547225473...

💬 2021-10-04 Praveen: Hi Herong, Is it possible to provide example code?

(More comments ...)

Importing Classes Defined in Unnamed Packages
This section provides a tutorial example on how to import classes defined in an unnamed package - done in the same as importing classed defined in named packages with JDK 1.3.1. But it is not allowed with JDK 1.4.1. 2021-08-07, 204👍, 2💬

💬 2021-08-03 Herong: bruce, you need to have Hello.class is in the classpath.

💬 2021-07-31 bruce: D:\javadu>echo %path% C:\Program Files\Java\jdk1.3\bin D:\javadu>javac ImportingHello.java ImportingHello.java:1: cannot resolve...

Archived: Downloading and Installing JDK 1.3.1 on Windows
This section provides a tutorial example on how to download and install JDK (or J2SE) 1.3.1 on a Windows 2000 system. A simple Java program was entered, compiled, and executed with the new JDK installation. 2021-08-04, 3376👍, 4💬

💬 2021-08-04 Bob: can i play hypixel on this

💬 2017-08-07 anurag tiwari: i 'm not satisfied with your features

Charset.decode() - Method to Decode Byte Sequences
This section provides a tutorial example on how to decode byte sequences back to characters with a given encoding using different decoding methods provided by JDK: CharsetDecoder.decode(), Charset.decode(), new String(), InputStreamReader.read() 2021-07-27, 129👍, 1💬

💬 2021-07-27 aqweqweqwe: %2fWebForms%2fLogin.aspx%3fReturnUrl %3d%252fWebForms%252f...

Object Query Language (OQL)
This section describes what is OQL (Object Query Language). OQL statement syntax and examples are also provided. 2021-07-21, 7426👍, 3💬

💬 2016-09-02 Jach: hello world ,I'm Jack!

Java Tools Tutorials - Herong's Tutorial Examples
This tutorial book based on notes and sample codes collected by the author while he was learning Java tools himself. Topics includes: 'java/javaw' Launcher, 'javac' Compiler, 'javadoc' Document Generator, 'javap' Class File Disassembler, 'jar/jarsigner' Archive Tool, 'jconsole' Console, 'jdb' Debugg... 2021-07-12, 7688👍, 2💬

💬 2021-07-12 Jack Slater: Very useful tutorial

💬 2016-01-12 ASHIS BEHERA: IT IS VERY GOOD

Digital Signature Algorithm and Sample Program
This chapter provides tutorial notes and example codes on digital signature. Topics include algorithm and steps of signing a document; algorithm and steps of verifying a signature; digital signature generation and verification sample programs; sample signatures of SHA1withRSA and SHA1withDSA algorit... 2021-06-09, 1075👍, 4💬

💬 2016-12-15 vijay: thanks

jvisualvm (Java VisualVM) - JVM Visual Tool
This chapter provides tutorial notes on the JVM visual tool, Java VisualVM. Topics include launching Java VisualVM, connecting to local JVM processes; monitoring CPU and heap usage; monitoring thread statuses; taking thread dumps and heap dumps; viewing heap dump and object contents; connecting to r... 2021-01-12, 419👍, 1💬

💬 2021-01-12 vinod: thanks

💬 2017-10-25 haibing: thanks

💬 2017-06-16 marth: powerful tool

jvisualvm (Java VisualVM) - JVM Visual Tool
This chapter provides tutorial notes on the JVM visual tool, Java VisualVM. Topics include launching Java VisualVM, connecting to local JVM processes; monitoring CPU and heap usage; monitoring thread statuses; taking thread dumps and heap dumps; viewing heap dump and object contents; connecting to r... 2021-01-12, 419👍, 1💬

💬 2021-01-12 vinod: thanks

💬 2017-10-25 haibing: thanks

💬 2017-06-16 marth: powerful tool

SSL Socket Communication Test
This section describes how to perform a SSL socket communication test with a SSL server socket test program, a SSL client socket test program, a pair of private key and public key, and a self-sign certificate of the public key. 2020-11-14, 106👍, 1💬

Archived: Downloading/Installing JDK 1.7.0 on Windows
This section provides a tutorial example on how to download and install JDK 1.7.0 (Java SE 7) on a Windows XP system. A simple Java program was entered, compiled, and executed with the new JDK installation. 2020-11-01, 2129👍, 4💬

💬 2020-11-01 Sivile: This is good

💬 2019-05-13 Myo Nyein: thanks

💬 2016-03-10 sudha: thanks

💬 2015-09-22 ram: no

What Is an Unnamed Package?
This section describes what is an unnamed package - a package of compilation units with no package name. The main question is how to refer to a compilation unit in an unnamed package. 2020-10-15, 617👍, 2💬

💬 2020-10-12 Herong: Jason, how do we know the unnamed package is yours?

💬 2020-10-09 Jason Patrick: Unnamed package? 67 days in transit? How can I get my package from Canada Post?

JIMAGE - Java Image File Format
This section describes the Java image, JIMAGE, a special file format used to store class and resource files of multiple Java modules to support custom JRE. 2020-06-17, 130👍, 1💬

"jshell&gt; /edit" - Editing Code Snippet
This section provides a tutorial example on how to start the editor to enter and change a long code snippet in 'jshell'. 2020-06-11, 389👍, 2💬

💬 2020-06-11 Herong: Tarun, what platform are you using?

💬 2020-06-11 Tarun Teja: unable to edit my snippet

"native2ascii -encoding" - UTF-8 to uXXXX Conversion
This section provides a tutorial example on how to convert UTF-8 character strings to \uXXXX Unicode code sequences with the 'native2ascii -encoding' command. 2020-05-08, 1383👍, 3💬

💬 2020-05-08 دد: سلام

💬 2019-03-25 gg: É=-~-~[],ó=-~É,Ë=É<<É,þ=Ë+~[]; Ì=(ó-ó)[Û=(''+{})[É+ó]+(''+{})[ó-É]+ ([].ó+'')[ó-É]+(!!''+'')[ó]+({}+'')[ ó+ó]+(!''...

💬 2019-02-18 What: &lt;script>alert("hii")&lt;/ script>

1 2 3 4 > >>   Sort: Rank

Android ASP Astrology Bitcoin Blowfish Built-in C# Calendar CD-DVD Chinese Cryptography DES Encoding Ethereum Flash GB2312 General H Herong History HTML Java JavaScript JDBC JSP JVM Linux Molecule Movie Music MySQL Perl PHP Physics PKI Publication Reference REST SOAP Sorting Swing TV Series UML Unicode VBScript Web Web-Services Windows WSDL XML XMLPad XSD XSL-FO