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Explicit and Implicit Type Casting
This section describes type casting supported in Java: up casting (widening reference conversion) and down casting (narrowing reference conversion). Cast operation can be written explicitly with the cast operator (T), or implicitly with no operator.
2022-10-01, 566🔥, 0💬

Looking Up Method Signature with javap Command
This section provides a tutorial example of how to lookup method signatures in a class file or JAR file with the 'javap' command.
2022-10-01, 540🔥, 0💬

JDK Documentation Installation
This section describes how to install JDK Documentation on your own local machine.
2022-10-01, 540🔥, 0💬

jrunscript - What Is It
This section describes what is 'jrunscript' - a command line tool that allows you to run script code that in interactive or batch mode.
2022-10-01, 539🔥, 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, 536🔥, 0💬

Search Operation Performance of Different Collection Classes
This section provides a tutorial example on how to do performance comparison on search operations on different collection classes implemented in JDK 1.4.1. HashSet and LinkedHashSet have the best performance on search operations.
2022-10-01, 530🔥, 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, 523🔥, 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, 516🔥, 0💬

"jar --module-version" - Updating Module Version in JAR
This section provides a tutorial example on how to use 'jar --update --module-version' to update the version number of the Java module stored in a module JAR file.
2022-10-01, 504🔥, 0💬

javap - Java Disassembler Command and Options
This section describes what are the commonly used command line options for the Java bytecode class disassembler - 'javap' tool.
2022-10-01, 499🔥, 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, 473🔥, 0💬

Binding Sockets to Specific Ports
This section describes how to bind a socket to a specific port. Binding multiple client sockets to the same port is not allowed.
2022-10-01, 467🔥, 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, 467🔥, 0💬

META-INF/MANIFEST.MF - JAR Manifest File
This section describes the JAR manifest file, META-INF/MANIFEST.MF, which contains information about the JAR file and its contents.
2022-10-01, 465🔥, 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, 447🔥, 0💬

java - Program Launching Command and Options
This section describes the Java launching tool 'java' and its commonly used command options.
2022-10-01, 441🔥, 0💬

"jdeps jar_file" - Dependencies of JAR File
This section provides a tutorial example on how to use 'jdeps' command to show package level dependencies of a given JAR file.
2022-10-01, 439🔥, 0💬

java.time.Period - Periods in Days and Months
This section describes the java.time.Period class that represents a calendar period measured in years, months, and/or days.
2022-10-01, 432🔥, 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, 430🔥, 0💬

Launching jmc (Java Mission Control)
This section provides a tutorial example on how to launch 'jmc' (Java Mission Control) and manage its JVM browser, details and Web browser panels.
2022-10-01, 430🔥, 0💬

jmap - JVM Heap Dump Tool
This section describes the JVM heap dump tool, 'jmap', command and its options. Windows version of 'jmap' can print heap histogram and generate heap dump.
2022-10-01, 429🔥, 0💬

Single-Element Annotation Invocation
This section provides a tutorial example on how to use the shorthand format for a single annotation element named as 'value' in annotation invocation statements.
2022-10-01, 428🔥, 0💬

What Is JAB (Java Access Bridge)
This section describes what is JAB (Java Access Bridge) - a technology that exposes the Java Accessibility API to Microsoft Windows environment. JDK comes with 3 JAB tools: jabswitch, jaccesswalker, and jaccessinspector.
2022-10-01, 418🔥, 0💬

"keytool -genkeypair" - Generating Keys and Self-Signed Certificates
This section provides a tutorial example on how to use the 'keytool -genkeypair' command to generate a new pair of keys and self-signed certificate in a new 'keystore' file.
2022-10-01, 417🔥, 0💬

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