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Run ZooKeeper Client Commands
How to run ZooKeeper Client Commands? If you have a ZooKeeper Server running, you can follow these steps to run some ZooKeeper client commands: 1. On the client computer, download and install Apache ZooKeeper binary package. 2. Run the client script to connect to the ZooKeeper server. You see the cl...
2022-02-19, 489👍, 0💬

Using Snappy-Java Library
Where to find answers to frequently asked questions on Using Snappy-Java Library? Here is a list of frequently asked questions and their answers compiled by FYIcenter.com team on Using Snappy-Java Library: org.xerial.snappy.Snappy Example Snappy-Java - Compress and Decompress Files   ⇒ org.xerial.sn...
2021-08-01, 489👍, 0💬

org.xerial.snappy.Snappy Example
How to use org.xerial.snappy.Snappy class? org.xerial.snappy.Snappy class allows you to compress and decompress byte arrays. Here is an example Java program, HelloSnappy.java: // HelloSnappy.java // Copyright (c) FYIcenter.com import org.xerial.snappy.Snappy; public class HelloSnappy { public static...
2021-08-01, 488👍, 0💬

"javap jar:file:" - Specify Bytecode in JAR
How to specify Bytecode in a JAR file for the "javap" command? If the bytecode is stored in *.class file, you can specify the bytecode for the "javap" command using the class file path name directly. For example: &gt; javap HelloWorldFrame.class &gt; javap \Users\fyicenter\HelloWorldFra me.cl...
2021-09-09, 484👍, 0💬

Jackson - Java JSON library
Where to find answers to frequently asked questions on Jackson - Java JSON library? Here is a list of frequently asked questions and their answers compiled by FYIcenter.com team Jackson - Java JSON library: Downloading and Reviewing jackson-*.jar What Is Jackson Jackson Core Source Code Download and...
2021-07-11, 481👍, 0💬

JDK 17 jdk.zipfs.jmod - ZIP FS Module
JDK 17 jdk.zipfs.jmod is the JMOD file for JDK 17 ZIP FS module. JDK 17 ZIP FS module compiled class files are stored in \fyicenter\jdk-17.0.5\jmods\jd k.zipfs.jmod.JDK 17 ZIP FS module compiled class files are also linked and stored in the \fyicenter\jdk-17.0.5\lib\modu lesJImage file. JDK 17 ZIP F...
2022-11-07, 477👍, 0💬

JDK "javap" Command
Where to find answers to frequently asked questions on JDK "javap" Command? Here is a list of frequently asked questions and their answers compiled by FYIcenter.com team on JDK "javap" Command: What Is JDK "javap" Command "javap" - Dedault Output "javap -c" - Generate Assembler Instructions "javap -...
2021-08-21, 477👍, 0💬

What Is Apache ZooKeeper
What is Apache ZooKeeper? Apache ZooKeeper is an open-source server which enables highly reliable distributed coordination. ZooKeeper is a centralized service for maintaining configuration information, naming, providing distributed synchronization, and providing group services. All of these kinds of...
2022-02-04, 475👍, 0💬

Using Apache ZooKeeper
Where to find answers to frequently asked questions on Using Apache ZooKeeper. Here is a list of frequently asked questions and their answers compiled by FYIcenter.com team on Using Apache ZooKeeper: Start Standalone ZooKeeper Server Run ZooKeeper Client Commands   ⇒ Start Standalone ZooKeeper Serve...
2022-02-04, 475👍, 0💬

Get PDF Document Info with iText
How to get PDF document information using iText Java Library? Here is a tutorial for getting PDF document information using iText Java Library. 1. Create a Java file, PdfInfo.java: /** * Get PDF info */ import com.itextpdf.kernel.pdf.*; import java.io.*; public class PdfInfo { public static void mai...
2021-11-13, 474👍, 0💬

What Is SLF4J API
What Is SLF4J (Simple Logging Facade for Java) API? The Simple Logging Facade for Java (SLF4J) serves as a simple facade or abstraction for various logging libraries (e.g. java.util.logging, logback, log4j) allowing the end user to plug in the desired logging library at deployment time. SLF4J-enabli...
2021-07-04, 474👍, 0💬

"javac -source 10 -target 10" - Lower Java Version
How to lower the Java version in the bytecode? I want to generate class files for an older Java environment. If you want generate class files for an older Java environment, you need to use "-source x" and "-target x" options in the "javac" command to compile the Java source code. 1. Check the defaul...
2021-09-09, 471👍, 0💬

Embed Image in PDF with iText
How to embed images in PDF using iText Java Library? Here is a tutorial for creating a PDF document with an embedded image using iText Java Library. 1. Create a Java file, EmbeddedImage.java: /** * An image embedded in text in PDF with iText */ import com.itextpdf.kernel.pdf.*; import com.itextpdf.l...
2021-11-13, 470👍, 0💬

Using slf4j-*.jar in Java Programs
Where to find answers to frequently asked questions on Using slf4j-*.jar in Java Programs. Here is a list of frequently asked questions and their answers compiled by FYIcenter.com team on Using slf4j-*.jar in Java Programs: SLF4J No Binding Example SLF4J Binding to Simple Logger Example SLF4J Bindin...
2021-12-23, 467👍, 0💬

Download Jackson Dataformat Binary Packages
How to download and install Jackson Dataformat Binary Packages? Jackson Core is "the Java JSON library" or "the best JSON parser for Java". Or simply as "JSON for Java". Jackson Dataformat Extensions support other types of message formats. You can follow these steps to download and install jackson-d...
2021-10-10, 467👍, 0💬

Create PDF with iText Java Library
How to create a simple PDF document with iText Java Library? If you are using iText 7 Java Library to create a simple PDF document, you need minimum 4 JAR files shown below: kernel-7.1.4.jar layout-7.1.4.jar io-7.1.4.jar slf4j-api-1.7.31.jar Here is a tutorial to get you started. 1. Create a Java fi...
2021-10-02, 466👍, 0💬

com.fasterxml.jackson.databind.ObjectMapper Example
How to use com.fasterxml.jackson.databind .ObjectMapperclass? com.fasterxml.jackson.databind .ObjectMapperclass allows you to map a JSON message to a Java class object that matches the JSON property structure. Here is an example Java program, ObjectMapperTest.java: // ObjectMapperTest.java // Copyri...
2021-08-11, 462👍, 0💬

Downloading SLF4J Components
How to download JAR files for different SLF4J Components? SLF4J not only offers the abstract API, but it also offers other components to help binding to different logging libraries. Steps to download SLF4J component JAR files: 1. Go to SLF4J Download Website . You see a list of SLF4J components. 2. ...
2021-11-30, 461👍, 0💬

Downloading and Reviewing SLF4J Packages
Where to find answers to frequently asked questions on Downloading and Reviewing SLF4J Packages. Here is a list of frequently asked questions and their answers compiled by FYIcenter.com team on Downloading and Reviewing SLF4J Packages: What Is SLF4J API SLF4J API Binding to Logging Libraries Downloa...
2021-07-04, 456👍, 0💬

Downloading and Reviewing zookeeper.jar
Where to find answers to frequently asked questions on Downloading and Reviewing zookeeper.jar. Here is a list of frequently asked questions and their answers compiled by FYIcenter.com team on Downloading and Reviewing zookeeper.jar: What Is Apache ZooKeeper Download and Install Apache ZooKeeper Bin...
2022-02-04, 453👍, 0💬

SLF4J No Binding Example
What happens if I use slf4j-api-*.jar without any logging library to bind with? If you use slf4j-api-*.jar only, you will get a warning message. And all logging messages will be dropped as shown in this tutorial. 1. Write a simple Java program, Hello.java, to use SLF4J API: // Copyright (c) FYIcente...
2021-12-23, 451👍, 0💬

build.xml Required by Apache Ant
What is the build.xml Required by Apache Ant? The build.xml file required by Apache Ant is XML file that contains instructions to build final targets using system commands and source files. Here is a tutorial on how to create a build.xml file and use "ant" to build a simple Java project. 1. Create a...
2021-07-10, 451👍, 0💬

Start Standalone ZooKeeper Server
How to start standalone ZooKeeper Server? If you want to start a standalone ZooKeeper Server on Linux or Mac computer, you can follow these steps: 1. Download a binary package of Apache ZooKeeper like apache-zookeeper-3.7.0-bin.tar .gz.2. Unzip and untar the package file. You see all files extracted...
2022-03-29, 449👍, 0💬

Java Bytecode Tools
Where to find answers to frequently asked questions on Java Bytecode tools? Here is a list of frequently asked questions and their answers compiled by FYIcenter.com team on Java Bytecode tools: Apache BCEL (Byte Code Engineering Library) What Is Apache BCEL Download and Install Apache BCEL Binary Pa...
2021-06-27, 445👍, 0💬

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