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Administrative Tasks
This chapter provides introductions and tutorial on Linux administrative task. Topics include shutting down and restarting system, moving /home to new partition, moving all users to a new system.
2022-10-01, ∼289🔥, 0💬

"HelloAndroid.java" - First Android Java Code
This section provides a tutorial example on how to review and modify the first Android Java code, HelloAndroid.java. The modification is to print out the 'Hello Android' text on mobile devices.
2022-10-01, ∼288🔥, 0💬

android.app.Activity Class and Activity Lifecycle
This chapter provides tutorial notes on android.app.Activity class and activity lifecycle. Topics include introduction of activity states, lifetime periods and activity callback methods; creating log file in the application's private file folder; implementing activity callback methods; writing examp...
2022-10-01, ∼288🔥, 0💬

"zipalign" Command - Aligning File Locations in .apk Package
This section describes the 'zipalign' tool for aligning file locations in an .apk package (really a .zip file) to decreases memory usage when running the application.
2022-10-01, ∼288🔥, 0💬

One Class in an Unnamed Package - Hello.java
This section provides a tutorial example on how to place one Java class in an unnamed package and how to compile and run the class in an unnamed package.
2022-10-01, ∼288🔥, 0💬

DOMBrowser.java - Browsing DOM Tree Structure
This section provides a tutorial example on how to write a DOM object browser, DOMBrowser.java, to browse through the DOM object tree structure and print the content at each tree node.
2022-10-01, ∼288🔥, 0💬

KeyPair and KeyPairGenerator Classes
This section describes the KeyPair and KeyPairGenerator Classes. The KeyPairGenerator.generateKeyPa ir()can be used to generate a private and public key pair.
2022-10-01, ∼288🔥, 0💬

"for ... in" and "for each ... in" Statements
This section provides a quick description of two special loop statements for iterating properties and methods of object. A tutorial example is provided to show the extra properties and methods of two objects of the same type.
2022-10-01, ∼288🔥, 0💬

What Is Annotation
This section describes the annotation programming facility that allows you to associates additional information with a program construct.
2022-10-01, ∼288🔥, 0💬

Static HTML Text in JSP Page in XML Syntax
This section provides a tutorial example to test how non-ASCII characters entered as static text in JSP pages in XML syntax are handled by the JSP server and returned to Web browsers.
2022-10-01, ∼288🔥, 0💬

Supporting Characters in Multiple Languages
This section provides a tutorial example to test how non-ASCII characters in multiple languages can be entered as static text in JSP pages in Unicode UTF-8 encoding.
2022-10-01, ∼288🔥, 0💬

"simpleType" - Defining Your Own Simple Datatypes
This chapter provides notes and tutorial examples on 'simpleType' components, which can be used to construct user-defined simple datatypes. Topics include 'restriction', 'list' and 'union' construction components; categories of simple datatypes: atomic, list, atomic union and list union; constrainin...
2022-10-01, ∼288🔥, 0💬

The Celestial Sphere Coordinate System
This section describes the celestial sphere coordinate system.
2022-10-01, ∼288🔥, 0💬

'vi' Commands to Insert and Change Text
This section provides a list of commands to insert, delete, replace and move text.
2022-10-01, ∼288🔥, 0💬

Table Column Types for Date and Time Values
Describes 6 types of table columns to store date and time values: TIME, DATE, TIMESTAMP, TIME WITH TIME ZONE, TIMESTAMP WITH TIME ZONE, and INTERVAL.
2022-10-01, ∼288🔥, 0💬

What Is InnoDB Storage Engine
This section describes the InnoDB storage engine, the default storage engine in the newer versions of MySQL server.
2022-10-01, ∼288🔥, 0💬

List of Multibyte String Functions
This section provides a quick list of multibyte string functions related to Chinese characters.
2022-10-01, ∼288🔥, 0💬

Steps and Components Involved
This section describes steps and application components involved in inputting Chinese characters through Web forms.
2022-10-01, ∼288🔥, 0💬

What Are Bitcoin Consensus Rules
This section describes what are Bitcoin Consensus Rules.
2022-10-01, ∼288🔥, 0💬

Install and Manage PHP Packages on CentOS
This section provides a tutorial example on how to install PHP 7.2 on CentOS 8 systems using 'dnf/yum' as the package manager.
2022-10-01, ∼288🔥, 0💬

Android Phone - LG-P925g
This chapter provides tutorial notes on the Android phone - LG-P925g. Topics include Android phone system basic information; running background processes and foreground applications; connecting phone to computer as USB storage drive, transferring files using Bluetooth radio; using Wi-Fi network to a...
2022-10-01, ∼287🔥, 0💬

What Is an Expression
This section provides an introduction of what is an expression. A data literal or a variable is a simple expression. A single operation or a group of multiple operations is a complex express.
2022-10-01, ∼287🔥, 0💬

Generating Certificate Signing Request (CSR)
This section provides a tutorial example on how to generate a private and public key pair for the domain name of a Web server and generate the Certificate Signing Request (CSR) asking a CA to sign the pubic key into a server certificate using JDK keytool command.
2022-10-01, ∼287🔥, 0💬

Object Literals of the "Object" Type
This section provides a quick description of object literals or initializers for creating new objects of the 'Object' type. A tutorial example is provided on how to initialize an object with two properties and two methods.
2022-10-01, ∼287🔥, 0💬

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