Java is a programming language and platform that is commonly used to develop desktop applications, web applications, mobile apps, and more. The document introduces Java by explaining what it is, where it is used, the types of Java applications that can be created, and how the Java compilation and execution process works at a high level. It also provides an example "Hello World" Java program to demonstrate the basic anatomy of a Java file, including classes, methods, and how the main method acts as the program entry point.
This is a seminar given by P. Nikhil (me) of Government Arts College, Rajahmundry.
This document contains Java and its features.
There is a wide range in usage of Java around the World .
Hope this document helps anyone who's interested in it.
Thank You
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
Lara Technologies are providing Software Training Division, Java/J2ee, Android, Web Services, Logical Coding, Basics Of C Language, Soft Skills, Aptitude, Etc.
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.
This is a seminar given by P. Nikhil (me) of Government Arts College, Rajahmundry.
This document contains Java and its features.
There is a wide range in usage of Java around the World .
Hope this document helps anyone who's interested in it.
Thank You
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
Lara Technologies are providing Software Training Division, Java/J2ee, Android, Web Services, Logical Coding, Basics Of C Language, Soft Skills, Aptitude, Etc.
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.
Introduction to Java Programming, Basic Structure, variables Data type, input...Mr. Akaash
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....
The features of java are also called java buzzwords. They are simple and object oriented. They are not dependent on any platform. These are highly secured and are robust. They are architecturally neutral and portable. They are dynamic and highly interpreted. They guarantee a high performance and are multi headed.
This extensive course covers all the topics which will definitely make you a Java Superstar. You can do almost anything in Java after this course. You will surely be a better programmer and better still a Elegant programmer after this course.
This presentation covers all the basics of Java language. It is very helpful for the beginners. It includes a presentation on Java overview and its edition, where Java is used, an overview of class and object, A simple Java program and its execution, Java vs C++.
Introduction to Java Programming, Basic Structure, variables Data type, input...Mr. Akaash
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....
The features of java are also called java buzzwords. They are simple and object oriented. They are not dependent on any platform. These are highly secured and are robust. They are architecturally neutral and portable. They are dynamic and highly interpreted. They guarantee a high performance and are multi headed.
This extensive course covers all the topics which will definitely make you a Java Superstar. You can do almost anything in Java after this course. You will surely be a better programmer and better still a Elegant programmer after this course.
This presentation covers all the basics of Java language. It is very helpful for the beginners. It includes a presentation on Java overview and its edition, where Java is used, an overview of class and object, A simple Java program and its execution, Java vs C++.
Java programming presentations By Daroko blog
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Slack (or Teams) Automation for Bonterra Impact Management (fka Social Soluti...Jeffrey Haguewood
Sidekick Solutions uses Bonterra Impact Management (fka Social Solutions Apricot) and automation solutions to integrate data for business workflows.
We believe integration and automation are essential to user experience and the promise of efficient work through technology. Automation is the critical ingredient to realizing that full vision. We develop integration products and services for Bonterra Case Management software to support the deployment of automations for a variety of use cases.
This video focuses on the notifications, alerts, and approval requests using Slack for Bonterra Impact Management. The solutions covered in this webinar can also be deployed for Microsoft Teams.
Interested in deploying notification automations for Bonterra Impact Management? Contact us at sales@sidekicksolutionsllc.com to discuss next steps.
GDG Cloud Southlake #33: Boule & Rebala: Effective AppSec in SDLC using Deplo...James Anderson
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
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 there’s more:
In a second workflow supporting the same use case, you’ll see:
Your campaign sent to target colleagues for approval
If the “Approve” button is clicked, a Jira/Zendesk ticket is created for the marketing design team
But—if the “Reject” 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
PHP Frameworks: I want to break free (IPC Berlin 2024)Ralf Eggert
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.
Essentials of Automations: Optimizing FME Workflows with ParametersSafe Software
Are you looking to streamline your workflows and boost your projects’ efficiency? Do you find yourself searching for ways to add flexibility and control over your FME workflows? If so, you’re in the right place.
Join us for an insightful dive into the world of FME parameters, a critical element in optimizing workflow efficiency. This webinar marks the beginning of our three-part “Essentials of Automation” series. This first webinar is designed to equip you with the knowledge and skills to utilize parameters effectively: enhancing the flexibility, maintainability, and user control of your FME projects.
Here’s what you’ll gain:
- Essentials of FME Parameters: Understand the pivotal role of parameters, including Reader/Writer, Transformer, User, and FME Flow categories. Discover how they are the key to unlocking automation and optimization within your workflows.
- Practical Applications in FME Form: Delve into key user parameter types including choice, connections, and file URLs. Allow users to control how a workflow runs, making your workflows more reusable. Learn to import values and deliver the best user experience for your workflows while enhancing accuracy.
- Optimization Strategies in FME Flow: Explore the creation and strategic deployment of parameters in FME Flow, including the use of deployment and geometry parameters, to maximize workflow efficiency.
- Pro Tips for Success: Gain insights on parameterizing connections and leveraging new features like Conditional Visibility for clarity and simplicity.
We’ll wrap up with a glimpse into future webinars, followed by a Q&A session to address your specific questions surrounding this topic.
Don’t miss this opportunity to elevate your FME expertise and drive your projects to new heights of efficiency.
Search and Society: Reimagining Information Access for Radical FuturesBhaskar Mitra
The field of Information retrieval (IR) is currently undergoing a transformative shift, at least partly due to the emerging applications of generative AI to information access. In this talk, we will deliberate on the sociotechnical implications of generative AI for information access. We will argue that there is both a critical necessity and an exciting opportunity for the IR community to re-center our research agendas on societal needs while dismantling the artificial separation between the work on fairness, accountability, transparency, and ethics in IR and the rest of IR research. Instead of adopting a reactionary strategy of trying to mitigate potential social harms from emerging technologies, the community should aim to proactively set the research agenda for the kinds of systems we should build inspired by diverse explicitly stated sociotechnical imaginaries. The sociotechnical imaginaries that underpin the design and development of information access technologies needs to be explicitly articulated, and we need to develop theories of change in context of these diverse perspectives. Our guiding future imaginaries must be informed by other academic fields, such as democratic theory and critical theory, and should be co-developed with social science scholars, legal scholars, civil rights and social justice activists, and artists, among others.
Accelerate your Kubernetes clusters with Varnish CachingThijs Feryn
A presentation about the usage and availability of Varnish on Kubernetes. This talk explores the capabilities of Varnish caching and shows how to use the Varnish Helm chart to deploy it to Kubernetes.
This presentation was delivered at K8SUG Singapore. See https://feryn.eu/presentations/accelerate-your-kubernetes-clusters-with-varnish-caching-k8sug-singapore-28-2024 for more details.
State of ICS and IoT Cyber Threat Landscape Report 2024 previewPrayukth K V
The IoT and OT threat landscape report has been prepared by the Threat Research Team at Sectrio using data from Sectrio, cyber threat intelligence farming facilities spread across over 85 cities around the world. In addition, Sectrio also runs AI-based advanced threat and payload engagement facilities that serve as sinks to attract and engage sophisticated threat actors, and newer malware including new variants and latent threats that are at an earlier stage of development.
The latest edition of the OT/ICS and IoT security Threat Landscape Report 2024 also covers:
State of global ICS asset and network exposure
Sectoral targets and attacks as well as the cost of ransom
Global APT activity, AI usage, actor and tactic profiles, and implications
Rise in volumes of AI-powered cyberattacks
Major cyber events in 2024
Malware and malicious payload trends
Cyberattack types and targets
Vulnerability exploit attempts on CVEs
Attacks on counties – USA
Expansion of bot farms – how, where, and why
In-depth analysis of the cyber threat landscape across North America, South America, Europe, APAC, and the Middle East
Why are attacks on smart factories rising?
Cyber risk predictions
Axis of attacks – Europe
Systemic attacks in the Middle East
Download the full report from here:
https://sectrio.com/resources/ot-threat-landscape-reports/sectrio-releases-ot-ics-and-iot-security-threat-landscape-report-2024/
The Art of the Pitch: WordPress Relationships and SalesLaura Byrne
Clients don’t know what they don’t know. What web solutions are right for them? How does WordPress come into the picture? How do you make sure you understand scope and timeline? What do you do if sometime changes?
All these questions and more will be explored as we talk about matching clients’ needs with what your agency offers without pulling teeth or pulling your hair out. Practical tips, and strategies for successful relationship building that leads to closing the deal.
"Impact of front-end architecture on development cost", Viktor TurskyiFwdays
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.
GraphRAG is All You need? LLM & Knowledge GraphGuy Korland
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/
2. What is Java
• Java is a programming language and a platform.
• Java is a high level, robust, secured and object-
oriented programming language.
• Platform: Any hardware or software
environment in which a program runs, is known
as a platform. Since Java has its own runtime
environment (JRE) and API, it is called platform.
•
2
3. Where it is used?
• According to Sun, 3 billion devices run java. There are
many devices where java is currently used. Some of
them are as follows:
• Desktop Applications such as acrobat reader, media
player, antivirus etc.
• Web Applications such as irctc.co.in, javatpoint.com
etc.
• Enterprise Applications such as banking applications.
• Mobile
• Embedded System
• Smart Card
• Robotics
• Games etc.
3
4. Java Applications
• We can develop four types of Java programs:
– Stand-alone applications
– Web applications (applets)
– Enterprise Application
– Mobile Application
5. Types of Java Applications
1) Standalone Application
• It is also known as desktop application or
window-based application.
• An application that we need to install on every
machine such as media player, antivirus etc.
• AWT and Swing are used in java for creating
standalone applications.
2) Web Application
• An application that runs on the server side and
creates dynamic page, is called web application.
• Currently, servlet, jsp, struts, jsf etc. technologies
are used for creating web applications in java.
5
6. 3) Enterprise Application
• An application that is distributed in nature, such
as banking applications etc.
• It has the advantage of high level security, load
balancing and clustering.
• In java, EJB is used for creating enterprise
applications.
4) Mobile Application
• An application that is created for mobile devices.
• Currently Android and Java ME are used for
creating mobile applications.
6
7. Applets v/s Applications
• Different ways to run a Java executable are
Application- A stand-alone program that can be
invoked from command line . A program that has
a “mainmain” method
Applet- A program embedded in a web page , to
be run when the page is browsed . A program
that contains no “main” method
• Application –Executed by the Java interpreter.
• Applet- Java enabled web browser.
8. Java is Compiled and Interpreted
Text Editor Compiler Interpreter
Programmer
Source Code
.java file
Byte Code
.class file
Hardware and
Operating System
Notepad,
emacs,vi
javac java
appletviewer
netscape
10. Total Platform Independence
JAVA COMPILERJAVA COMPILER
JAVA BYTE CODEJAVA BYTE CODE
JAVA INTERPRETERJAVA INTERPRETER
Windows 95 Macintosh Solaris Windows NT
(translator)
(same for all platforms)
(one for each different system)
11. Architecture Neutral & Portable
• Java Compiler - Java source code (file with
extension .java) to bytecode (file with
extension .class)
• Bytecode - an intermediate form, closer to
machine representation
• A interpreter (virtual machine) on any target
platform interprets the bytecode.
12. Getting Started with Java
Programming
• A Simple Java Application
• Compiling Programs
• Executing Applications
12
13. A Simple Application
Example 1.1
//This application program prints Welcome
//to Java!
package chapter1;
public class Welcome {
public static void main(String[] args) {
System.out.println("Welcome to Java!");
}
}
13
RunRunSourceSource
NOTE: To run the program,
install slide files on hard
disk.
14. Creating and Compiling Programs
• On command line
– javac file.java
14
Source Code
Create/Modify Source Code
Compile Source Code
i.e. javac Welcome.java
Bytecode
Run Byteode
i.e. java Welcome
Result
If compilation errors
If runtime errors or incorrect result
15. Executing Applications
• On command line
– java classname
15
Java
Interpreter
on Windows
Java
Interpreter
on Sun Solaris
Java
Interpreter
on Linux
Bytecode
...
17. Anatomy of a Java Program
• Comments
• Package
• Reserved words
• Modifiers
• Statements
• Blocks
• Classes
• Methods
• The main method
17
18. Comments
•In Java, comments are preceded by two slashes (//) in a line, or
enclosed between /* and */ in one or multiple lines.
•When the compiler sees //, it ignores all text after // in the same line.
• When it sees /*, it scans for the next */ and ignores any text
between /* and */.
18
19. Package
•The second line in the program (package chapter1;) specifies a
package name, chapter1, for the class Welcome.
• Forte compiles the source code in Welcome.java, generates
Welcome.class, and stores Welcome.class in the chapter1 folder.
19
20. Reserved Words
•Reserved words or keywords are words that have a specific meaning to
the compiler and cannot be used for other purposes in the program.
• For example, when the compiler sees the word class, it understands
that the word after class is the name for the class.
•Other reserved words in Example 1.1 are public, static, and void.
20
21. Modifiers
•Java uses certain reserved words called modifiers that specify the
properties of the data, methods, and classes and how they can be used.
• Examples of modifiers are public and static. Other modifiers are
private, final, abstract, and protected.
•A public datum, method, or class can be accessed by other programs.
• A private datum or method cannot be accessed by other programs.
21
22. Statements
•A statement represents an action or a sequence of actions.
•The statement System.out.println("Welcome to Java!") in the program
in Example 1.1 is a statement to display the greeting "Welcome to
Java!" Every statement in Java ends with a semicolon (;).
22
23. Blocks
23
•A pair of braces in a program forms a block that groups components of
a program.
public class Test {
public static void main(String[] args) {
System.out.println("Welcome to Java!");
}
}
Class block
Method block
24. Classes
•The class is the essential Java construct.
•A class is a template or blueprint for objects.
• To program in Java, you must understand classes and be able to write
and use them.
•For now, though, understand that a program is defined by using one or
more classes.
24
25. Methods
What is System.out.println?
•It is a method: a collection of statements that performs a sequence of
operations to display a message on the console.
• It can be used even without fully understanding the details of how it works.
•It is used by invoking a statement with a string argument.
•The string argument is enclosed within parentheses. In this case, the
argument is "Welcome to Java!" You can call the same println method with a
different argument to print a different message.
25
26. main Method
•The main method provides the control of program flow. The Java interpreter
executes the application by invoking the main method.
•The main method looks like this:
public static void main(String[] args) {
// Statements;
}
26
28. Summary
• class keyword is used to declare a class in java.
• public keyword is an access modifier which
represents visibility, it means it is visible to all.
• static is a keyword, if we declare any method as
static, it is known as static method.
– The core advantage of static method is that there is
no need to create object to invoke the static method.
– The main method is executed by the JVM, so it
doesn't require to create object to invoke the main
method. So it saves memory.
28
29. • void is the return type of the method, it
means it doesn't return any value.
• main represents startup of the program.
• String[] args is used for command line
argument.
• System.out.println() is used print statement.
29
30. • What happens at compile time?
• At compile time, java file is compiled by Java
Compiler (It does not interact with OS) and
converts the java code into bytecode.
30
31. • What happens at runtime?
• At runtime, following steps are performed:
31
Classloader: is the subsystem of JVM that
is used to load class files.
Bytecode Verifier: checks the code
fragments for illegal code that can violate
access right to objects.
Interpreter: read bytecode stream then
execute the instructions.
Editor's Notes
First Class: Introduction, Prerequisites, Advices, Syllabus
Lab 1: Create a Java Project, Compile, and Run.
Show syntax errors
Print program
Capture screen shots, and save it in Word, and print it.
Homework One: Check in the class randomly.