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JRadioButtonMenuItemTest.java - Radio Button Menu Item Test Program
This section provides a tutorial example on how to use the javax.swing.JRadioButtonMenuIt emclass to create multiple radio button menu items and added them into a button group. If one radio button menu item is selected in a group, all others will be unselected.
2022-10-01, ∼903🔥, 0💬

Conda Configuration Files
This section provides a quick introduction about the Conda Configuration Files that contain configuration settings for the Conda command and its environments.
2022-10-01, ∼903🔥, 0💬

"byte" Data Type and Implicit Casting
This section provides a tutorial example on how 'byte' variables can be assigned with 'byte' values with implicit and explicit casting from other compatible types of values.
2022-10-01, ∼902🔥, 0💬

"firewalld" and "firewall-cmd" on CentOS
This section provides a tutorial example on how to use 'firewalld' daemon and 'firewall-cmd' CLI to manage network firewall on CentOS 8 systems.
2022-10-01, ∼900🔥, 0💬

simple-page-master - Simple Page Layout
This section describes the simple page layout, simple-page-master, which divides a page into 5 regions: region-body, region-before, region-after, region-start, and region-end.
2022-10-01, ∼897🔥, 0💬

"keytool -keyclone" - Cloning Certificates with New Identities
This section provides a tutorial example on how to use the 'keytool -keyclone' command to clone a certificate with new identity. The cloned certificates with share the same keys with the original certificate.
2022-10-01, ∼895🔥, 0💬

"java --describe-module" - Printing Module Definition
This section provides a tutorial example on how to use 'java --describe-module' command to print out the definition of a given Java module.
2022-10-01, ∼895🔥, 0💬

ActionListener, ChangeListener and ItemListener
This section provides a tutorial example on how to use ActionListener, ChangeListener and ItemListener interfaces to handle different types of events generated on check boxes.
2022-10-01, ∼893🔥, 0💬

Digital Signature - Microsoft Word
This chapter provides tutorial notes and example codes on applying digital signature with Microsoft Word. Topics include what is PKI digital signature; obtaining a commercial certificate signed by a trusted root CA; adding invisible and visible digital signatures in Word documents; viewing and valid...
2022-10-01, ∼892🔥, 0💬

SAXValidator.java - Validating XML with DTD using SAX
This section provides a tutorial example on how to use SAX API provided in JDK 1.4 to write a Java program to validate an XML document against the specified DTD document type.
2022-10-01, ∼892🔥, 0💬

MBean Browser on jmc JMX Console
This section provides a tutorial example on how to view details of live objects related to the JVM using the MBean Browser on jmc JMX Console.
2022-10-01, ∼891🔥, 0💬

"-XX:+PrintFlagsFinal" - Print JVM Options
This section describes the '-XX:+PrintFlagsFinal' JVM option, which prints all options and their values used by the JVM.
2022-10-01, ∼889🔥, 0💬

jconsole - Command Options and Connection Window
This section describes the 'jconsole' command and its options. The connection window of the JDK 1.6 version is also included.
2022-10-01, ∼888🔥, 0💬

Using HTTPS with Google Chrome
This chapter provides tutorial notes and example codes on using certificates with Google Chrome. Topics include why Web browsers need certificates; viewing the certificate from an HTTPS Web server; saving the certificate from a server to a certificate file; exporting certificates to files.
2022-10-01, ∼884🔥, 0💬

XML-to-JSON Conversion Library for Java
This section provides a tutorial example on how to use a 'JSON-java' conversion library offered by json.org to perform XML-to-JSON conversions in a Java program. The output JSON document is good, only if input XML document contains well structured data.
2022-10-01, ∼884🔥, 0💬

Identity-Constraint with Multiple Fields
This section provides a tutorial example on how to specify a 'key' identify constraint in an XSD schema that uses multiple 'field' to construct identify values with multiple components.
2022-10-01, ∼884🔥, 0💬

Concurrent Mark-Sweep (CMS) Collector - "+XX:+UseConcMarkSweepGC"
This chapter provides tutorial notes and example codes on the Concurrent Mark-Sweep Collector specified by the '+XX:+UseConcMarkSweepGC' JVM option. Topics include introduction to Concurrent Mark-Sweep (CMS) Collector; CMS Collector log message format; demonstration of reduction of stop-the-world by...
2022-10-01, ∼884🔥, 0💬

Perform Point Addition with tinyec
This section provides a tutorial example on how to perform the point addition operation on a given elliptic curve with tinyec Python library.
2022-10-01, ∼880🔥, 0💬

javac - Java Compilation Command and Options
This section describes what are the commonly used command line options for the Java compiler - 'javac' tool.
2022-10-01, ∼879🔥, 0💬

JVM Garbage Collection Logging
This chapter provides tutorial notes and example codes on JVM options for garbage collection logging. Topics include a summary of logging options; examples of log messages for '-Xlog:gc', '-Xlog:gc:file', -Xlog:gc=trace', '-Xlog:gc+heap=trace', '-Xlog:gc*=trace', etc.
2022-10-01, ∼878🔥, 0💬

"QName" Datatype Values and Representations
This section describes the built-in primitive datatype, 'QName' that represents XML element and attribute names with or without namespaces. Leading and trailing whitespaces are allowed and trimmed.
2022-10-01, ∼876🔥, 0💬

Table with Caption
This section provides a tutorial example on how to create a table with a caption with table-and-caption and table-caption formatting objects. By default, caption is placed before the table.
2022-10-01, ∼875🔥, 0💬

jmap - Generating Heap Dump File
This section provides a tutorial example on how to generate a heap dump file with the 'jmap -dump:file=name' command. A heap dump file contains all heap objects of JVM process.
2022-10-01, ∼874🔥, 0💬

ReverseEchoServer.java - A Multi-Connection Socket Server
This section provides a tutorial example on how to write a network application, ReverseEchoServer.java, that creates a server socket and listens for multiple remote socket connection requests. It creates a new execution thread each time, for each new connection.
2022-10-01, ∼872🔥, 0💬

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