This document provides an introduction and overview of the Java programming language, including its history, features, and components. It discusses how Java was developed in 1995 at Sun Microsystems and introduced as a platform-independent language for general business applications and web-based internet applications. It also summarizes Java's key features like being object-oriented, compiled and interpreted, and portable, as well as its core architecture components like the Java programming language, Java Virtual Machine, and Java API.
Introduction to Java Programming, Basic Structure, variables Data type, input...Mr. Akaash
Ā
This is First Lecture of java Programming which cover all basic points (ie. History and feature of java, Introduction to java, about variables data type and compilation....
JAVA was developed by Sun Microsystems Inc in 1991, later acquired by Oracle Corporation. It was developed by James Gosling and Patrick Naughton. It is a simple programming language. Writing, compiling and debugging a program is easy in java. It helps to create modular programs and reusable code.
A presentation on core java. in this ppt there are all the basic informations on the core java suvh as-
Features of Java
Java Program Translation
Java Virtual Machine
Java system overview
Java Program-Development phase
Advantage of java
Disadvantage of java
Project
Introduction to Java Programming, Basic Structure, variables Data type, input...Mr. Akaash
Ā
This is First Lecture of java Programming which cover all basic points (ie. History and feature of java, Introduction to java, about variables data type and compilation....
JAVA was developed by Sun Microsystems Inc in 1991, later acquired by Oracle Corporation. It was developed by James Gosling and Patrick Naughton. It is a simple programming language. Writing, compiling and debugging a program is easy in java. It helps to create modular programs and reusable code.
A presentation on core java. in this ppt there are all the basic informations on the core java suvh as-
Features of Java
Java Program Translation
Java Virtual Machine
Java system overview
Java Program-Development phase
Advantage of java
Disadvantage of java
Project
JDK stand for java development kit.
JVM stands for Java Virtual Machine.
JRE is the responsible unit to run the java program.
JIT stands for Just In Time compiler.
Here I discuss about Java programming language and easiest way to solve programming problem. Java basic syntax and their uses are described briefly so that anyone can easily understand within very short time. If anyone follow the slide with proper way,I assure that he or she will find java programming interesting.
JDK stand for java development kit.
JVM stands for Java Virtual Machine.
JRE is the responsible unit to run the java program.
JIT stands for Just In Time compiler.
Here I discuss about Java programming language and easiest way to solve programming problem. Java basic syntax and their uses are described briefly so that anyone can easily understand within very short time. If anyone follow the slide with proper way,I assure that he or she will find java programming interesting.
International Journal of Electrical Power System and Technology
covers many diversified but interlinked areas of electrical power system and technology which includes conventional electromechanical technology to electrical power systems computer analysis. Journal includes research articles and review papers both theoretical and experimental papers.
Introduction for telecommunication technology basic terms and concepts.
Referring the wikipedia, Slideshare and lecture note of Fudan university.
I got a reference documents from Google.
this slide contains about basic introduction of java.it will be helpful for a java beginner. it also useful for java lecture course in your versity.programming with java is very essential for every student.this silde may help you to progress your skill & lernt abc about java.
this slide is about java introductory.it will be helpful for you to know abc of jaba.it also be helpful for u in your versity java course.programming with java is very important for every student.java freshers can grabbed it easily
"Impact of front-end architecture on development cost", Viktor TurskyiFwdays
Ā
I have heard many times that architecture is not important for the front-end. Also, many times I have seen how developers implement features on the front-end just following the standard rules for a framework and think that this is enough to successfully launch the project, and then the project fails. How to prevent this and what approach to choose? I have launched dozens of complex projects and during the talk we will analyze which approaches have worked for me and which have not.
LF Energy Webinar: Electrical Grid Modelling and Simulation Through PowSyBl -...DanBrown980551
Ā
Do you want to learn how to model and simulate an electrical network from scratch in under an hour?
Then welcome to this PowSyBl workshop, hosted by Rte, the French Transmission System Operator (TSO)!
During the webinar, you will discover the PowSyBl ecosystem as well as handle and study an electrical network through an interactive Python notebook.
PowSyBl is an open source project hosted by LF Energy, which offers a comprehensive set of features for electrical grid modelling and simulation. Among other advanced features, PowSyBl provides:
- A fully editable and extendable library for grid component modelling;
- Visualization tools to display your network;
- Grid simulation tools, such as power flows, security analyses (with or without remedial actions) and sensitivity analyses;
The framework is mostly written in Java, with a Python binding so that Python developers can access PowSyBl functionalities as well.
What you will learn during the webinar:
- For beginners: discover PowSyBl's functionalities through a quick general presentation and the notebook, without needing any expert coding skills;
- For advanced developers: master the skills to efficiently apply PowSyBl functionalities to your real-world scenarios.
GDG Cloud Southlake #33: Boule & Rebala: Effective AppSec in SDLC using Deplo...James Anderson
Ā
Effective Application Security in Software Delivery lifecycle using Deployment Firewall and DBOM
The modern software delivery process (or the CI/CD process) includes many tools, distributed teams, open-source code, and cloud platforms. Constant focus on speed to release software to market, along with the traditional slow and manual security checks has caused gaps in continuous security as an important piece in the software supply chain. Today organizations feel more susceptible to external and internal cyber threats due to the vast attack surface in their applications supply chain and the lack of end-to-end governance and risk management.
The software team must secure its software delivery process to avoid vulnerability and security breaches. This needs to be achieved with existing tool chains and without extensive rework of the delivery processes. This talk will present strategies and techniques for providing visibility into the true risk of the existing vulnerabilities, preventing the introduction of security issues in the software, resolving vulnerabilities in production environments quickly, and capturing the deployment bill of materials (DBOM).
Speakers:
Bob Boule
Robert Boule is a technology enthusiast with PASSION for technology and making things work along with a knack for helping others understand how things work. He comes with around 20 years of solution engineering experience in application security, software continuous delivery, and SaaS platforms. He is known for his dynamic presentations in CI/CD and application security integrated in software delivery lifecycle.
Gopinath Rebala
Gopinath Rebala is the CTO of OpsMx, where he has overall responsibility for the machine learning and data processing architectures for Secure Software Delivery. Gopi also has a strong connection with our customers, leading design and architecture for strategic implementations. Gopi is a frequent speaker and well-known leader in continuous delivery and integrating security into software delivery.
Connector Corner: Automate dynamic content and events by pushing a buttonDianaGray10
Ā
Here is something new! In our next Connector Corner webinar, we will demonstrate how you can use a single workflow to:
Create a campaign using Mailchimp with merge tags/fields
Send an interactive Slack channel message (using buttons)
Have the message received by managers and peers along with a test email for review
But thereās more:
In a second workflow supporting the same use case, youāll see:
Your campaign sent to target colleagues for approval
If the āApproveā button is clicked, a Jira/Zendesk ticket is created for the marketing design team
Butāif the āRejectā button is pushed, colleagues will be alerted via Slack message
Join us to learn more about this new, human-in-the-loop capability, brought to you by Integration Service connectors.
And...
Speakers:
Akshay Agnihotri, Product Manager
Charlie Greenberg, Host
Transcript: Selling digital books in 2024: Insights from industry leaders - T...BookNet Canada
Ā
The publishing industry has been selling digital audiobooks and ebooks for over a decade and has found its groove. Whatās changed? What has stayed the same? Where do we go from here? Join a group of leading sales peers from across the industry for a conversation about the lessons learned since the popularization of digital books, best practices, digital book supply chain management, and more.
Link to video recording: https://bnctechforum.ca/sessions/selling-digital-books-in-2024-insights-from-industry-leaders/
Presented by BookNet Canada on May 28, 2024, with support from the Department of Canadian Heritage.
Software Delivery At the Speed of AI: Inflectra Invests In AI-Powered QualityInflectra
Ā
In this insightful webinar, Inflectra explores how artificial intelligence (AI) is transforming software development and testing. Discover how AI-powered tools are revolutionizing every stage of the software development lifecycle (SDLC), from design and prototyping to testing, deployment, and monitoring.
Learn about:
ā¢ The Future of Testing: How AI is shifting testing towards verification, analysis, and higher-level skills, while reducing repetitive tasks.
ā¢ Test Automation: How AI-powered test case generation, optimization, and self-healing tests are making testing more efficient and effective.
ā¢ Visual Testing: Explore the emerging capabilities of AI in visual testing and how it's set to revolutionize UI verification.
ā¢ Inflectra's AI Solutions: See demonstrations of Inflectra's cutting-edge AI tools like the ChatGPT plugin and Azure Open AI platform, designed to streamline your testing process.
Whether you're a developer, tester, or QA professional, this webinar will give you valuable insights into how AI is shaping the future of software delivery.
Kubernetes & AI - Beauty and the Beast !?! @KCD Istanbul 2024Tobias Schneck
Ā
As AI technology is pushing into IT I was wondering myself, as an āinfrastructure container kubernetes guyā, how get this fancy AI technology get managed from an infrastructure operational view? Is it possible to apply our lovely cloud native principals as well? What benefitās both technologies could bring to each other?
Let me take this questions and provide you a short journey through existing deployment models and use cases for AI software. On practical examples, we discuss what cloud/on-premise strategy we may need for applying it to our own infrastructure to get it to work from an enterprise perspective. I want to give an overview about infrastructure requirements and technologies, what could be beneficial or limiting your AI use cases in an enterprise environment. An interactive Demo will give you some insides, what approaches I got already working for real.
GraphRAG is All You need? LLM & Knowledge GraphGuy Korland
Ā
Guy Korland, CEO and Co-founder of FalkorDB, will review two articles on the integration of language models with knowledge graphs.
1. Unifying Large Language Models and Knowledge Graphs: A Roadmap.
https://arxiv.org/abs/2306.08302
2. Microsoft Research's GraphRAG paper and a review paper on various uses of knowledge graphs:
https://www.microsoft.com/en-us/research/blog/graphrag-unlocking-llm-discovery-on-narrative-private-data/
DevOps and Testing slides at DASA ConnectKari Kakkonen
Ā
My and Rik Marselis slides at 30.5.2024 DASA Connect conference. We discuss about what is testing, then what is agile testing and finally what is Testing in DevOps. Finally we had lovely workshop with the participants trying to find out different ways to think about quality and testing in different parts of the DevOps infinity loop.
PHP Frameworks: I want to break free (IPC Berlin 2024)Ralf Eggert
Ā
In this presentation, we examine the challenges and limitations of relying too heavily on PHP frameworks in web development. We discuss the history of PHP and its frameworks to understand how this dependence has evolved. The focus will be on providing concrete tips and strategies to reduce reliance on these frameworks, based on real-world examples and practical considerations. The goal is to equip developers with the skills and knowledge to create more flexible and future-proof web applications. We'll explore the importance of maintaining autonomy in a rapidly changing tech landscape and how to make informed decisions in PHP development.
This talk is aimed at encouraging a more independent approach to using PHP frameworks, moving towards a more flexible and future-proof approach to PHP development.
JMeter webinar - integration with InfluxDB and GrafanaRTTS
Ā
Watch this recorded webinar about real-time monitoring of application performance. See how to integrate Apache JMeter, the open-source leader in performance testing, with InfluxDB, the open-source time-series database, and Grafana, the open-source analytics and visualization application.
In this webinar, we will review the benefits of leveraging InfluxDB and Grafana when executing load tests and demonstrate how these tools are used to visualize performance metrics.
Length: 30 minutes
Session Overviewā
-------------------------------------------
During this webinar, we will cover the following topics while demonstrating the integrations of JMeter, InfluxDB and Grafana:
- What out-of-the-box solutions are available for real-time monitoring JMeter tests?
- What are the benefits of integrating InfluxDB and Grafana into the load testing stack?
- Which features are provided by Grafana?
- Demonstration of InfluxDB and Grafana using a practice web application
To view the webinar recording, go to:
https://www.rttsweb.com/jmeter-integration-webinar
UiPath Test Automation using UiPath Test Suite series, part 3DianaGray10
Ā
Welcome to UiPath Test Automation using UiPath Test Suite series part 3. In this session, we will cover desktop automation along with UI automation.
Topics covered:
UI automation Introduction,
UI automation Sample
Desktop automation flow
Pradeep Chinnala, Senior Consultant Automation Developer @WonderBotz and UiPath MVP
Deepak Rai, Automation Practice Lead, Boundaryless Group and UiPath MVP
2. ā¢ Today Java , is one of the most popular programming
language which is used in critical applications likeā¦
ļ± web based applications
ļ±Embedded applications
ļ± android mobile application.
Introduction
3. ā¢ Lets have a look in history of Javaā¦
ā¢ Java was developed by James Gosling from Sun Microsystems in 1995.
ā¢ Introduced as an object-oriented language for general-purpose business
applications and for interactive, Web-based Internet applications.
ā¢ The goal was to provide platform-independent alternative to C++. In other
terms it is architecturally neutral, which means that you can use Java to
write a program that will run on any platform or device.
ā¢ Instead, Java runs on a Java Virtual Machine (JVM).
History & Evolution
4. ā¢ James Gosling ,Mike Sheridan and Patrick Naughton initiated the
green project in June 1991.
ā¢ Originally designed for small , embedded systems in electronic
appliances like set-top boxes.
ā¢ It was initially called as Oak and later on renamed as āJavaā in 1995.
ā¢ Originally developed by James Gosling at Sun Microsystems in
1995.
ā¢ JDK 1.0 released in 1996.
History and Evolution
5. History of Java Releases
Java Version/Code Name
Release Date
Important Features/Code Name
JDK 1.0 (Oak)
23rd Jan 1996
Initial release
JDK 1.1
19th Feb 1997
Reflection , JDBC , Inner Classes
,RMI
J2SE 1.2 (Playground)
8th Dec 1998
Collection , JIT, String memory map
J2SE 1.3 (Kestrel)
8th May 2000
Java Sound , Java Indexing ,JNDI
J2SE 1.4 (Merlin)
6th Feb 2002
Assert , regex, exception chaining
J2SE 5.0 (Tiger)
30th Sept 2004
Generics ,autoboxing ,enums
Java SE 6.0 (Mustang)
11th Dec 2006
JDBC 4.0 , Java compiler API ,
Annotations
Java SE 7.0 (Dolphin)
28th July 2011
String in switch case ,exception
handling new way
6. Simple:
A Java programmer does not need to know the internal
functioning of Java, such as how memory is allocated to data.
Object-oriented:
Java supports the object-oriented approach to develop
programs.
Compiled and interpreted:
The Java programs are first compiled and then interpreted.
After the program is compiled, it is converted to a bytecode.
The Java Virtual Machine (JVM) then interprets this bytecode
into the computer code and runs it.
Portable:
Refers to the ability of a program to run on any platform without
changing the source code of a program.
Features of Java Environment
7. ā¢
The following figure shows how the Java bytecode and the JVM together
make Java programs portable on different platforms.
Features of Java Environment
8. Distributed:
Java is designed for the distributed environment of the Internet
because it supports the various Internet protocols, such as
Transmission Control Protocols and Internet Protocol (TCP/IP).
Secure:
Java has built-in security features that verify that the programs
do not perform any destructive task, such as accessing the
files on a remote system.
Features of Java
Environment
9. ā¢ Java technology provides language part along with architecture for
running applications.
ā¢ Java Architecture provides
ā¢ Portable
ā¢ high-performance
ā¢ robust runtime environment.
ā¢ Various Components of Java Architecture are :
ā¢ Java Programming Language and class file
ā¢ JVM
ā¢ Java Application Programming Interface (API)
Java Architecture
10. ā¢ Java Runtime Environment contains JVM, class libraries and
other supporting components.
ā¢ Java source code is compiled into bytecode by Java compiler.
ā¢ This bytecode will be stored in class files.
ā¢ During runtime, this bytecode will be loaded, verified
and JVM interprets the bytecode into machine code which
will be executed in the machine in which the Java program
runs.
Java Runtime Environment (JRE)
11. ā¢ A Java Runtime Environment performs the following main
tasks respectively.
ā¢ Loads the class
ā¢ This is done by the class loader
ā¢ Verifies the bytecode
ā¢ This is done by bytecode verifier.
ā¢ Interprets the bytecode
ā¢ This is done by the JVM
Java Runtime Environment (JRE)
12. ā¢ Java programming language and class file:
ā¢ Java programs are saved with an extension, .java.
ā¢ A .java file is compiled to generate the .class file, which contains the
byte code.
ā¢ The JVM converts the byte code contained in the .class file to machine
object code.
ā¢ The JVM needs to be implemented for each platform running on a
different operating system.
Java Programming Lang. & Class file
13. ā¢ Its an abstract Machine forms the base of Java Platform.
ā¢ Specification that provides runtime environment in which java byte code
can be executed.
ā¢ Available for many hardware and software.
ā¢ JVM performs:
ā¢
ā¢
ā¢
ā¢
Loads code
Verifies code
Executes code
Provide Runtime Environment
Java Virtual Machine (JVM)
14. ā¢ Major Components of JVM
ā¢ Class Loader
ā¢ Byte code Verifier
ā¢ Just In Time (JIT) compiler
Java Virtual Machine
16. ā¢ Class Loader
ā¢ Class loader loads all the class files required to execute the
program.
ā¢ Byte code Verifier
ā¢
ā¢
ā¢
ā¢
Checks that code follows JVM specifications.
There is no unauthorized access to memory.
The code does not cause any stack overflows.
There are no illegal data conversions in the code such as float to
object references.
Components of JVM
17. ā¢ JIT Compiler
ā¢ Used to improve performance.
ā¢ It translates byte code only the first time.
ā¢ If repeated execution of code is required , it is automatically
mapped to the corresponding native machine code.
ā¢ JIT make use of the machine code which is cached and stored.
Components of JVM
18. Java Development Kit
ā¢ Package that provides the basic functionality of Java Language.
ā¢ Contains series of classes and methods
ā¢ Tools used to develop and execute java programs is known as JDK.
ā¢ It contains
ā¢
ā¢
ā¢
ā¢
Basic Tools( javac,java,javap,javadoc,appletviewer etc)
RMI tools (rmic,rmiregistry,rmid)
Security Tools (keytools,policytool etc.)
Java plug-in Tools
19. Basic Tools
Description
Javac
Compiler for java language
Java
Launcher of java application
Javadoc
API documentation generator
Appletviewer
Run and debug applets without a web
browser
Jar
Manage java archive files
Javap
Class file dissassembler
Java Development Kit
20. The Java API is a collection of software components that provide
capabilities, such as GUI.
The related classes and interfaces of the Java API are grouped
into packages.
The following figure shows how the Java API and the JVM forms
the platform for the Java programs on top of the hardware.
Java API
21. ā¢ Java can be used to develop more dynamic programs.
ā¢ Leading programming language for wireless technology and real time
embedded programming for cell phones.
ā¢ Major Categories of java programs :
ā¢ Applets
ā¢ Applications
Type of Java Programs
22. ā¢ Applets
ā¢ Small program embedded in a web page.
ā¢ Applets are downloaded over network and can make network
connections only to the host they are issued from.
ā¢ Graphical in nature and tends to contain controls like text field
, button label etc.
ā¢ Applications
ā¢
ā¢
ā¢
ā¢
Standalone programs written in java.
Invoked by using a JVM.
Can access the local file system.
Can execute on the server machine.
Types of Java Programs
23. ā¢ Temporary Path Setting
ā¢ Open command prompt
ā¢ Copy the path of bin folder
ā¢ Write in command prompt
ā¢ Set path=c:Program
FilesJavaJdk1.6.0_03bin;
ā¢ Permanent Path Setting
ā¢ Right click on My Computer
ā¢ Select Properties > Advanced tab >
Environment variables >new tab of
user variables > write path in
variable name > write path of bin
folder in variable value > ok
Setting Path for JDK in Windows
25. ā¢ Create a source document using any editor such as Notepad and save file as
.java
ā¢ For example: HelloWorld.java
ā¢ Compile the java file using ājavacā command. Byte Code will be
generated on disk.
Javac HelloWorld.java
After Compilation
HelloWorld.class
ā¢ This byte code can run on any platform or device having JVM using
ājavaā
Command.
StepS areā¦.
26. class simple
{
public static void main(String args[])
{
System.out.println(āHello Javaā);
}
}
To Compile : javac simple.java
To Run
: java simple
Sample Java Program
27. ā¢ class : Used to declare class in java.
ā¢ public : Access modifier which represents the visibility.
ā¢ static : Keyword for creating static method , so that we can access it
without creating object.
ā¢ void : Return type of main method , its doesnāt return anything.
ā¢ main : Represent the startup of the program
ā¢ String args[] : Used to store command line arguments.
Understanding Sample
Program
31. ā¢ Built-in support for multi-threading, socket communication, and memory
management (automatic garbage collection).
ā¢ Object Oriented (OO).
ā¢ Better portability than other languages across operating systems.
ā¢ Supports Web based applications (Applet, Servlet, and JSP) .
ā¢ Supports distributed applications (sockets, RMI, EJB etc.) and network
protocols (HTTP, JRMP etc.) with the help of extensive standardized
APIs (Application Programming Interfaces).
Advantages of Java Programming
Language