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Reference Data Types and Variables
This chapter provides tutorial notes and example codes on reference data types and variables. Topics include 5 reference data types; reference data type variables store references to objects; multiple variables referring to a single object; superclass-subclass relation; superinterface-subinterface r...
2022-10-01, ∼297🔥, 0💬

Encoding Conversion Programs for Encoded Text Files
This chapter provides tutorial notes and example codes on character encoding conversion. Topics include entering Unicode characters with \uxxxx escape sequences; viewing encoded text files in Hex values; converting text files from one encoding to another; viewing encoded text files in Web browsers; ...
2022-10-01, ∼296🔥, 0💬

Type Casting Example Program
This section provides a tutorial example on how to use up casting and down casting explicitly and implicitly.
2022-10-01, ∼295🔥, 0💬

Socket Network Communication
This chapter provides tutorial notes and example codes on socket network communication. Topics include introduction to socket communication; creating a server socket and listening for connection requests; creating a client socket and connects to a server socket; creating server application for multi...
2022-10-01, ∼294🔥, 0💬

Viewing Encoded Text Files in Web Browsers
This section provides a tutorial example on how to view text files with different encodings with Web browser Internet Explorer. The encoded text file should be modified to add proper HTML tags using the sample program EncodingHtml.java.
2022-10-01, ∼292🔥, 0💬

Comparing Message Digest Output of MD5 and SHA
This section a tutorial example on how to view and compare message digest output from two standard message digest algorithms MD5 and SHA.
2022-10-01, ∼292🔥, 0💬

Class Type Variables Storing References
This section describes how references of class objects are stored in class variables of the same class type.
2022-10-01, ∼292🔥, 0💬

Performance Comparison of String and StringBuffer
This section provides a tutorial example to do a performance comparison of 3 classes: String, StringBuffer, SimpleStringBuffer.
2022-10-01, ∼292🔥, 0💬

Use 'class' to Define Enumeration
This section provides a tutorial on how to define a set of enumeratin constants use a 'class' declaration statement.
2022-10-01, ∼291🔥, 0💬

Date, Time and Calendar Classes
This chapter provides tutorial notes and example codes on JDK date, time and calendar classes. Topics include using java.util.Date to measure date and time; using java.util.Calendar and sub-classes to manage calendar information; using Calendar.add() method to manipulate calendar elements.
2022-10-01, ∼290🔥, 0💬

"jrunscript" - Run JavaScript Interactively
This section provides a tutorial example on how to use 'jrunscript' to run JavaScript code interactively.
2022-10-01, ∼289🔥, 0💬

getAnnotations() Method - Annotation APIs
This section provides a tutorial example on how to use the getAnnotations() method and other annotation APIs to obtain annotation information at runtime.
2022-10-01, ∼289🔥, 0💬

java.util.ListResourceBundle - Resource Bundles as Lists
This section provides a tutorial example on how to create resource bundles (localization key names with their localized text messages) as subclasses of the java.util.ListResourceBundle abstract class.
2022-10-01, ∼288🔥, 0💬

Reading DSA Private and Public Key Files
This section provides a tutorial example on running the test program JcaKeyFactoryTest.java to generate, write, read and convert DSA private and public keys.
2022-10-01, ∼288🔥, 0💬

System Properties and Runtime Object Methods
This chapter provides tutorial notes and tutorial examples on system properties and the Runtime object. Topics include listing all system properties, setting your own properties, accessing the Runtime object, checking free memory, executing OS commands.
2022-10-01, ∼288🔥, 0💬

Install JDK with "rpm" Command
This section provides a tutorial on how to download and install JDK packages from pkgs.org repository using 'rpm' command on CentOS systems.
2022-10-01, ∼287🔥, 0💬

What Is JDK
This section describes what is JDK (Java Development Kit) - a development environment for building software applications and software components using the Java programming language.
2022-10-01, ∼286🔥, 0💬

SAX (Simple API for XML)
This chapter provides tutorial notes and example codes on SAX (Simple API for XML). Topics include identifying SAX implementation classes in JDK; XML content event handler interface and methods; writing your own XML parser handler using SAX interface.
2022-10-01, ∼285🔥, 0💬

java.security.KeyStore - The 'keystore' Class
This section provides a quick introduction of the java.security.KeyStore class, which represents a copy of a 'keystore' database file in memory.
2022-10-01, ∼285🔥, 0💬

bitStringTest.java - Testing Program
This section provides tutorial example program to test setBit(), getBit(), and rotateLeft() to manage bit strings in byte arrays.
2022-10-01, ∼285🔥, 0💬

Supported Character Encodings in JDK
This section provides a tutorial example on how to display a list character encodings supported by JDK with the java.nio.charset.Charset.avail ableCharsets()method.
2022-10-01, ∼284🔥, 0💬

What Is HTTPS?
This section provides a quick introduction to HTTPS (Hypertext Transfer Protocol Secure) - A combination of HTTP (Hypertext Transfer Protocol) and SSL (Secure Socket Layer) or TLS (Transport Layer Security).
2022-10-01, ∼284🔥, 0💬

Hello.java API Document
This section provides a tutorial example of how to generated a Java API document for the Hello.java class with 'javadoc' command.
2022-10-01, ∼284🔥, 0💬

StringBuffer - The String Buffer Class
This chapter describes the StringBuffer class included in the java.lang package. Topics include StringBuffer properties and methods, implementing a simple string buffer class, comparing performances of String and StringBuffer classes.
2022-10-01, ∼284🔥, 0💬

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