Android ASP Astrology Big5 Bitcoin Blowfish Built-in C# Calendar CD-DVD Cheminformatics Chinese Cryptography DES Email Encoding Ethereum Flash GB2312 General H Herong History HTML Java JavaScript JDBC JSP JVM Linux Molecule Movie Music MySQL Neural Network Perl PHP Physics PKI Publication Python REST SOAP Sorting Swing TV Series UML Unicode VBScript Web Web-Services Windows WSDL XML XMLPad XSD XSL-FO

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Calculating Memory Usage of an Array
This section provides a tutorial example on how to calculate memory usage of a large array. 2022-10-01, ∼516🔥, 0💬

JceSecretKeyTest.java - Secret Key Test Program
This section provides a quick tutorial example on how to write a sample program to generate a secret key for Blowfish, DES, or HmacMD5 encryption, save the secret key to a file, and read it back. 2022-10-01, ∼509🔥, 0💬

Garbage Collection and Unused Objects
This section describes what is garbage collection and what is an unused object. 2022-10-01, ∼496🔥, 0💬

java.time.OffsetDateTime - Calendar and UTC Offset
This section describes the java.time.OffsetDateTime class that represents a local time in a specific UTC offset expressed in 3 components, ISO 8601 date, time of day and UTC offset. 2022-10-01, ∼495🔥, 0💬

jdeprscan - The Java Deprecated API Scanner
This chapter provides tutorial notes on 'jdeprscan', the Java Deprecated API Scanner. Topics include 'jdeprscan' command options; scanning for deprecated APIs of a given class or jar file; displaying all deprecated APIs of a specific JDK release. 2022-10-01, ∼495🔥, 0💬

Generic Classes and Parameterized Types
This chapter provides tutorial notes and example codes on generic classes and parameterized types. Topics include what is a generic class; what is a type parameter; using parameterized types and subtyping; using wildcard parameterized types and subtyping. 2022-10-01, ∼493🔥, 0💬

JDK (Java Development Kit)
This chapter provides tutorial JDK (Java Development Kit). Topics include introduction of JDK; downloading and installing JDK on Windows, macOS and CentOS systems; creating and running a simple Java program. 2022-10-01, ∼492🔥, 0💬

"java -jar" - Specifying Executable JAR File
This section provides a tutorial example on how to use the '-jar' option for the 'java' tool to specify an executable JAR file. 2022-10-01, ∼491🔥, 0💬

What Is Deadlock
This section provides a tutorial example on how to demonstrate a deadlock condition with two Java threads. 2022-10-01, ∼489🔥, 0💬

jcmd - The JVM Diagnostic Tool
This chapter provides tutorial notes on 'jcmd', the JVM Diagnostic Tool. Topics include list of local JVMs; list of diagnostic commands; running VM.* commands; running GC.* commands; generating heap dump and thread dump. 2022-10-01, ∼488🔥, 0💬

"jcmd 0 Thread.print" - Generating Thread Dump
This section provides a tutorial example on how to use the 'jcmd 0 Thread.print' command to generate a thread dump of a given JVM. 2022-10-01, ∼485🔥, 0💬

Message Digest Algorithm Implementations in JDK
This chapter provides tutorial notes and example codes on message digest algorithm implementation. Topics include JCA (Java Cryptography Architecture) package; java.security.MessageDigest class; MD5 and SHA message digest program; message digest output comparison. 2015-10-06, ∼482🔥, 2💬

Adding Threads and Thread Groups
This section provides a tutorial example on how to add threads and thread groups to the 'system' ThreadGroup tree. 2022-10-01, ∼479🔥, 0💬

com.sun.management.jmxremote - JMX Agent for Local Connection
This section provides a tutorial example on how to turn on the out-of-the-box JMX agent on Sun JVM for monitoring tool 'jconsole' to connect on the local machine. 2022-10-01, ∼473🔥, 0💬

java.util.NumberFormat - Formatting Numeric Values to Strings
This section provides a tutorial example on how to use java.util.NumberFormat and java.util.DecimalFormat classes to convert or format numeric values into text strings in various locales. 2022-10-01, ∼468🔥, 0💬

jpackage - What Is It
This section describes what is 'jpackage' - a command line tool that allows you to create a binary distribution package of your Java application for a specific computer platform in a specific format. 2022-10-01, ∼468🔥, 0💬

Adding JDK "bin" Directory to Path Setting
This section provides a tutorial on how to add JDK 'bin' directory to the 'path' system environment variable. 2022-10-01, ∼466🔥, 0💬

javap - The Java Class File Disassembler
This chapter provides tutorial notes on 'javap', the Java class file disassembler. Topics include list of 'javap' command options, showing public variables and methods, showing private variables and methods, disassembling bytecode to JVM assembler code. 2022-10-01, ∼465🔥, 0💬

java.util.Calendar - The Abstract Calendar Class
This section provides a tutorial example on how to use calendar related classes: java.util.Calendar, java.util.GregorianCalendar, java.util.TimeZone, and java.util.SimpleTimeZone. 2022-10-01, ∼462🔥, 0💬

Monitoring Trigers on jmc JMX Console
This section provides a tutorial example on how to use JVM monitoring triggers provided by the MBean Browser on jmc JMX Console. 2022-10-01, ∼462🔥, 0💬

Character Set Encoding Maps - Unicode UTF-8
This section provides a tutorial example of analyzing and printing character set encoding maps for encoding: UTF-8, the most popular encoding for Unicode character set. 2022-10-01, ∼459🔥, 0💬

java.util.DateFormat - Formatting Date Objects to Strings
This section provides a tutorial example on how to use java.util.DateFormat and java.util.SimpleDateFormat classes to convert or format data objects into text strings in a specific calendar in various locales. 2022-10-01, ∼457🔥, 0💬

"jcmd 0 GC.*" - Running GC Diagnostic Commands
This section provides a tutorial example on how to use 'jcmd 0 GC.*' commands to get heap information, run GC or generate heap dump file, of a given JVM. 2022-10-01, ∼457🔥, 0💬

"jaccesswalker" - GUI Component Tree Browser
This section provides a tutorial example on how to use 'jabswitch' and 'jaccesswalker' to display the GUI component tree a Java GUI application on Windows computers. 2022-10-01, ∼457🔥, 0💬

<< < … 5 6 7 8 9 10 11 12 13 14 15 … > >>   ∑:488  Sort:Date

Android ASP Astrology Big5 Bitcoin Blowfish Built-in C# Calendar CD-DVD Cheminformatics Chinese Cryptography DES Email Encoding Ethereum Flash GB2312 General H Herong History HTML Java JavaScript JDBC JSP JVM Linux Molecule Movie Music MySQL Neural Network Perl PHP Physics PKI Publication Python REST SOAP Sorting Swing TV Series UML Unicode VBScript Web Web-Services Windows WSDL XML XMLPad XSD XSL-FO