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'jstat -gcutil' - Garbage Collection Statistics
This section provides a tutorial example on how to use the 'jstat -gcutil' command to get garbage collection statistics against a specified JVM process ID. 2018-09-22, ∼2884🔥, 2💬

💬 2018-09-22 Herong: Jagan, "jstat" is for Windows system only. You need to use vmstat or iostat on Oracle Solaris or Linux operating system.

💬 2018-09-22 jagan: cd /usr/java/jdk1.8.0_172/bin/j jar jarsigner java javac java-rmi.cgi jcmd jdeps jjs jps jrunscript jstat is not there.. what we...

"jar --list" - Listing Files in JAR File
This section provides a tutorial example on how to list files stored in a JAR file with the 'jar --list' command. 2022-10-01, ∼2801🔥, 0💬

Full Version in PDF/EPUB
Information on how to obtain the full version of this book in PDF, EPUB, or other format. 2017-09-29, ∼2773🔥, 5💬

💬 2017-09-29 gloax29: merci

💬 2015-11-20 sameer: good going

💬 2015-09-02 Herong: Dharshan, you can follow tutorials presented at JSSE - Java Implementation of SSL and TLS .

💬 2015-09-01 Dharshan: I want to learn JSSE

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. 2023-03-18, ∼2690🔥, 2💬

💬 2023-03-18 -: nice

Converting uXXXX Sequences Back with "-reverse" Option
This section provides a tutorial example on how to \uXXXX Unicode code sequences back to a native encoding like UTF-8 with the 'native2ascii -encoding utf-8 -reverse' command. 2022-10-01, ∼2650🔥, 0💬

main() Method - Java Execution Entry Point
This section describes the Java program entry point, the main() method of the starting class. Command line arguments are passed as an string array parameter to the main() method. 2020-01-21, ∼2606🔥, 1💬

💬 2020-01-21 samso: Thanks for this wonderful blog that you have designed in this page. Very informative and effective article. Ver inspired article...

Supertype and Subtype
This section describes the supertype-subtype relationships: a supertype corresponds a class or interface that is extended or implemented directly or indirectly by the class or interface of the subtype. 2022-10-01, ∼2458🔥, 0💬

Setting UTF-8 Encoding in PrintStream
This section provides a tutorial example on how to set UTF-8 encoding an output PrintStream to correctly print non-ASCII characters. 2022-08-22, ∼2458🔥, 1💬

"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. 2022-10-01, ∼2339🔥, 4💬

💬 2022-10-01 DEMO: DEMO

💬 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>

Java Thread Deadlock Demo Program
This section provides a tutorial example of simple deadlock demo program, SimpleDeadLock.java, with 2 threads waiting for each other. 2016-02-20, ∼2204🔥, 2💬

💬 2015-11-27 Herong: Rahul, I think your dump file is a correct thread dump. It provides you a list of threads in a text format. You can use any text...

💬 2015-11-26 Rahul: Hi, Thanks for nice article. when we use jstack or kill -QUIT / kill -3 to get thread dump , we always get the dump file which s...

Installing Latest JDK on Windows
This section provides a tutorial example on how to download and install the latest version JDK, which includes some nice Java tools, on a Windows system. 2016-02-26, ∼2089🔥, 2💬

💬 2015-07-29 Herong: Sophie, I am so glad that my tutorial is helpful to you.

💬 2015-07-29 Sophie: Thank you. I have successfully installed Java jdk 1.8 using the instructions on this web page.

jar - The JAR File Tool
This chapter provides notes and tutorials on JAR file tool, 'jar'. Topics include Java Archive (JAR) file forma, 'jar' command options, creating JAR files, managing JAR files with WinZIP, using manifest file, creating executable JAR files. 2016-02-27, ∼2034🔥, 3💬

💬 2015-06-06 svdude: Love your clear explanation of creating and using JARs. Thank you!

💬 2010-12-25 Herong: Eka, No, you can not use client's public key to sign a .jar file. Digital signature needs to be generated using your own private...

💬 2010-12-22 Eka: If i have a client's public key... can i sign a .jar using his public key to later be used only by him?

Initializing SSLContext with PKCS12 File
This section provides a tutorial example on how to write a simple program to test the java.net.ssl.SSLContext class with a PKCS12 keystore file. 2022-10-01, ∼2028🔥, 0💬

"jar --main-class" - Making JAR File Executable
This section provides a tutorial example on how to use 'jar --main-class ...' command option to specify the application main class to make a JAR file executable. 2022-10-01, ∼1948🔥, 0💬

"java -classpath" - Specifying Class Path
This section provides a tutorial example on how to use the '-classpath' option to specify the class path for the 'java' tool to load any classes required during the execution. 2022-10-01, ∼1947🔥, 0💬

jstat - JVM Statistics Monitoring Tool
This chapter provides tutorial notes on JVM statistics monitoring tools. Topics include listing JVM processes with 'jps', the JVM remote monitoring server - 'jstatd', Java security policy file, connecting 'jps' and 'jstat' to a remote machine, RMI protocol and URL, getting garbage collection statist... 2017-08-10, ∼1907🔥, 1💬

💬 2017-08-10 abdel: genial very good !!!

💬 2017-04-01 Herong: Asdaq, Thanks for sharing your comment.

💬 2017-03-31 Asdaq: For IBM SDK WebSphere Application Server this tool is not available.

💬 2015-12-13 Herong: Tim, I thought that every Linux system comes with JDK preinstalled. Not true?

💬 2015-12-12 tim: @majumder.soumya@gmail.com seems like you need to install jdk

(More comments ...)

java.time.Instant - get(INSTANT_SECONDS) Error
This section provides a tutorial example on how to use getLong() to retrieve INSTANT_SECONDS value. Using get() will result an exception. 2016-08-03, ∼1892🔥, 2💬

💬 2016-08-03 Herong: G, Thanks for pointing out the root cause of the issue. I will correct it in the next update.

💬 2016-08-02 G: the valid values range is outside of int, use getLong() instead of get(),

Using SO_LINGER Socket Option
A tutorial example is provided to show how to use the SO_LINGER socket option to prevent the server closing the socket too soon after writing the response to the socket. 2017-02-16, ∼1888🔥, 2💬

💬 2017-02-16 Herong: Gaurav, you can to follow "keytool -genkey" - Generating Keys and Self-Signed Certificates tutorial to generate herong.jks.

💬 2017-02-15 Gaurav Kumar: Where can i get this file herong.jks?

"javac --module" - Compiling Entire Module
This section provides a tutorial example on how to use 'javac --module' command to compile all Java source code in an entire module. 2022-10-01, ∼1887🔥, 0💬

jmod - The JMOD File Tool
This chapter provides tutorial notes on 'jmod', the JMOD File Tool. Topics include introduction of JMOD file format; 'jmod' command options; creating JMOD file with 'jmod'; viewing and extracting JMOD file with 'jmod'; using JMOD file in 'javac' and 'jlink' commands. 2022-10-01, ∼1870🔥, 0💬

Creating Module JAR File
This section provides a tutorial example on how to use 'jar --create' command to create a module JAR file to store all class files of a Java module. 2023-04-24, ∼1824🔥, 2💬

💬 2023-04-24 Jeff: Append my comments. It actually worked. Didn't realize C in -C is a capital letter and there's a dot in the end.

💬 2023-04-24 Jeff: when I tried --describe-module option, command prompt said no module descriptor found. Derived automatic module. Also, the --lis...

Full Version in PDF/EPUB
Information on how to obtain the full version of this book in PDF, EPUB, or other format. 2016-07-09, ∼1783🔥, 3💬

💬 2016-07-09 vetal: good

💬 2015-12-01 Michael Collins: Thanks

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, ∼1762🔥, 3💬

"jar --extract" - Extracting Files from JAR File
This section provides a tutorial example on how to extract files out of a JAR file with the 'jar --extract' command. 2022-10-01, ∼1694🔥, 0💬

<< < 1 2 3 4 5 6 7 8 … > >>   ∑:488  Sort:Date

Android ASP Astrology Big5 Bitcoin Blowfish Built-in C# Calendar CD-DVD Cheminformatics Chinese Cryptography DES Email Encoding Ethereum Flash GB2312 General H Herong History HTML Java JavaScript JDBC JSP JVM Linux Molecule Movie Music MySQL Neural Network Perl PHP Physics PKI Publication Python REST SOAP Sorting Swing TV Series UML Unicode VBScript Web Web-Services Windows WSDL XML XMLPad XSD XSL-FO