The document provides an overview of the Java programming language by discussing its origins, goals, features, data types, classes, and code examples. It began as a language called Oak that aimed to be platform independent. Key goals included using object-oriented methodology and allowing programs to run on multiple operating systems. Features include being simple, secure, portable, robust, and having automatic garbage collection. It also compares Java to C++, highlighting differences in inheritance, overloading, and memory management. Code examples demonstrate basic Java syntax and handling exceptions.
While coding in Java is (pretty) straight forward, some tasks require going beyond the borders of standard JVM coding practices in order to interface with low-level hardware & software programmatic APIs.
This slide will introduce the concept and basics of JNA, as well as discuss the probable caveats one might encounter when working with JNA, based on real production use-cases.
Python is a great programming language. It is a complete tutorial of using this programming language.
This slides is split into two parts, and it is the first part. Another part is at: http://www.slideshare.net/moskytw/programming-with-python-adv.
This Presentation is a draft of a summary of "Learn Python The Hard Way" Book which is very helpful for anyone want to learn python from scratch of
For reading the book and do exercises, the book is available for free here: http://learnpythonthehardway.org/book/
A for loop is probably the most common type of loop in Python. A for loop will select items from any iterable. In Python an iterable is any container (list, tuple, set, dictionary), as well as many other important objects such as generator function, generator expressions, the results of builtin functions such as filter, map, range and many other items.
Historically concept of Actors has been derived from Erlang and is being used as a Threading model in Scala and AKka.
We can think Actors like two persons who do not talk to each other but communicate via a mailbox
While coding in Java is (pretty) straight forward, some tasks require going beyond the borders of standard JVM coding practices in order to interface with low-level hardware & software programmatic APIs.
This slide will introduce the concept and basics of JNA, as well as discuss the probable caveats one might encounter when working with JNA, based on real production use-cases.
Python is a great programming language. It is a complete tutorial of using this programming language.
This slides is split into two parts, and it is the first part. Another part is at: http://www.slideshare.net/moskytw/programming-with-python-adv.
This Presentation is a draft of a summary of "Learn Python The Hard Way" Book which is very helpful for anyone want to learn python from scratch of
For reading the book and do exercises, the book is available for free here: http://learnpythonthehardway.org/book/
A for loop is probably the most common type of loop in Python. A for loop will select items from any iterable. In Python an iterable is any container (list, tuple, set, dictionary), as well as many other important objects such as generator function, generator expressions, the results of builtin functions such as filter, map, range and many other items.
Historically concept of Actors has been derived from Erlang and is being used as a Threading model in Scala and AKka.
We can think Actors like two persons who do not talk to each other but communicate via a mailbox
After reimplement many features several times in different platforms is time to think that it should be a better way. There are many frameworks that allows the developers to write the code once and deploy it "everywhere", but the final result is an app with a non native look and feel or with an emulated look and feel that the users can see and rate according to the quality.
There are other ways to develop apps for multiple platforms without rewriting the same code over and over. I'll talk about one of that ways which consists on developing the core with C++ and implement the UI natively. This method could sound very scary because of the C++ reputation (memory leaks, the standard library, etc), but with C++11 all this has been improved in a very sweet way, so maybe it is time to take an other look at this language and see how can we take advantage of it.
What is Java Technology (An introduction with comparision of .net coding)Shaharyar khan
A introductory slides for those who want to learn and know some basics of Java.Also for those persons who want to compare coding difference between Java and .net
This PPT File helps IT freshers with the Basic Interview Questions, which will boost there confidence before going to the Interview. For more details and Interview Questions please log in www.rekruitin.com and click on Job Seeker tools. Also register on the and get employed.
By ReKruiTIn.com
My session in Wearable DevCon 2014, Burlingame, CA
[Note: now the conference is called "Wearable Tech Con" ]
The session gives an introduction to using the Java Native Interface (JNI) in Java, and in particular in the Android Platform. The session then covers the use of the Native Development Kit (NDK) for developing Android applications.
C# .NET: Language Features and Creating .NET Projects, Namespaces Classes and...yazad dumasia
C# .NET: Language Features and Creating .NET Projects, Namespaces Classes and Inheritance , Exploring the Base Class Library -, Debugging and Error Handling , Data Types full knowledge about basic of .NET Framework
UiPath Test Automation using UiPath Test Suite series, part 3DianaGray10
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
Securing your Kubernetes cluster_ a step-by-step guide to success !KatiaHIMEUR1
Today, after several years of existence, an extremely active community and an ultra-dynamic ecosystem, Kubernetes has established itself as the de facto standard in container orchestration. Thanks to a wide range of managed services, it has never been so easy to set up a ready-to-use Kubernetes cluster.
However, this ease of use means that the subject of security in Kubernetes is often left for later, or even neglected. This exposes companies to significant risks.
In this talk, I'll show you step-by-step how to secure your Kubernetes cluster for greater peace of mind and reliability.
Elevating Tactical DDD Patterns Through Object CalisthenicsDorra BARTAGUIZ
After immersing yourself in the blue book and its red counterpart, attending DDD-focused conferences, and applying tactical patterns, you're left with a crucial question: How do I ensure my design is effective? Tactical patterns within Domain-Driven Design (DDD) serve as guiding principles for creating clear and manageable domain models. However, achieving success with these patterns requires additional guidance. Interestingly, we've observed that a set of constraints initially designed for training purposes remarkably aligns with effective pattern implementation, offering a more ‘mechanical’ approach. Let's explore together how Object Calisthenics can elevate the design of your tactical DDD patterns, offering concrete help for those venturing into DDD for the first time!
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
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/
Key Trends Shaping the Future of Infrastructure.pdfCheryl Hung
Keynote at DIGIT West Expo, Glasgow on 29 May 2024.
Cheryl Hung, ochery.com
Sr Director, Infrastructure Ecosystem, Arm.
The key trends across hardware, cloud and open-source; exploring how these areas are likely to mature and develop over the short and long-term, and then considering how organisations can position themselves to adapt and thrive.
Epistemic Interaction - tuning interfaces to provide information for AI supportAlan Dix
Paper presented at SYNERGY workshop at AVI 2024, Genoa, Italy. 3rd June 2024
https://alandix.com/academic/papers/synergy2024-epistemic/
As machine learning integrates deeper into human-computer interactions, the concept of epistemic interaction emerges, aiming to refine these interactions to enhance system adaptability. This approach encourages minor, intentional adjustments in user behaviour to enrich the data available for system learning. This paper introduces epistemic interaction within the context of human-system communication, illustrating how deliberate interaction design can improve system understanding and adaptation. Through concrete examples, we demonstrate the potential of epistemic interaction to significantly advance human-computer interaction by leveraging intuitive human communication strategies to inform system design and functionality, offering a novel pathway for enriching user-system engagements.
DevOps and Testing slides at DASA ConnectKari Kakkonen
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.
Neuro-symbolic is not enough, we need neuro-*semantic*Frank van Harmelen
Neuro-symbolic (NeSy) AI is on the rise. However, simply machine learning on just any symbolic structure is not sufficient to really harvest the gains of NeSy. These will only be gained when the symbolic structures have an actual semantics. I give an operational definition of semantics as “predictable inference”.
All of this illustrated with link prediction over knowledge graphs, but the argument is general.
JMeter webinar - integration with InfluxDB and GrafanaRTTS
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 Overview
-------------------------------------------
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
2. Discussion about???
Why need to navigate to Java code life cycle
JAVA? Data types.
Goals of JAVA. Wrapper Classes.
Features of JAVA. Operators.
C++ Vs JAVA.
2
3. Why ‘JAVA’ the programming
language?
The ultimate aim to develop the JAVA programming language
is to implement the words “write once; run anywhere, any time,
forever”.
This is the problem the people meet at that time. The wanted
to have the language that can be run for any platform(Operating
System). This led to the development of JAVA as initial name
Oak. Then JAVA COFFEE, finally renamed as JAVA.
3
4. cntd.....
The application needed to be platform independent in some
places. Assume the situation the application is going to be run on
networked systems.
In network many kind of system specification and OS may be
there. In this case the application must be a Platform
independent. Here, JAVA will help us.
4
5. Goal of JAVA
It should use the object-oriented programming methodology.
It should allow the same program to be executed on multiple
operating systems.
It should contain built-in support for using computer networks.
It should be designed to execute code from remote sources
securely.
It should be easy to use by selecting what was considered the
good parts of other object-oriented languages.
5
6. Features of JAVA
Simple Architecture-neutral
Secure Interpreted
Portable High performance
Object-oriented Automatic Garbage Collection
Robust
Multithreaded
6
7. Automatic Garbage Collection
The memory management(allocation and de-allocation) of an
allocated object is done automatically.
If the reference for the object is not available in program, then
the JVM automatically de-allocates the memory for that object.
If this is not done automatically, the programmer must do the
code to manage the memory(allocate and de-allocate).
If not de-allocated by the programmer, then the memory
fragmentation is difficult. Memory leak will occur.
7
8. Example code
public static int main(String[] a)
{
System.out.println(“n”+4+34);
return 0;
}
Output???
Error: Main method not found in class sample, please define the main method as:
public static void main(String[] args)
8
9. eg: cntd
public static void main(String[] a)
{
System.out.println(“n”+4+34);
System.out.println(34+2+"n");
return 0;
}
Output ??? 434
36
public static void main(String[] a)
{
System.out.println(4+34);
return 0;
}
Output ??? 38
9
10. C++ Vs
C++ JAVA
Not a full-fledged object oriented The pure Object oriented language.
language. Because, we can write the
complete program without using
class.
We can write an error free program, Here, we can not complete the
with class and without having any execution without having code within
code within the main(). The program the main().
can be correctly executed completely.
Multiple inheritance is supported. Multiple inheritance is removed.
Operator overloading is available. Not available.
cntd…. 10
11. Virtual functions is available. Indirectly method overriding having
the working of virtual function.
Pointers, references available. References only available.
Platform dependent. Platform independent.
Abstract class avail. Abstract class may be mapped to Interface.
Automatic garbage collection not avail. Available.
Not a strongly typed language. Strongly typed language.
Unicode not supported. Unicode support provided.
Destructor available. finalize() method available instead
destructor.
const final
11
12. Function prototype
In C++ the function prototype is ??
return_type function_name(argument_list)
In java for the function prototype concentration on 4 things.
return_type function_name(argument_list) Exception
12
14. Data Types
All the data types available in C++ available in JAVA. But some
more additions upgraded.
The data width of int and char are upgraded as follows.,
The extra data types are also introduced.
Data type Size(bits)
long 64
int 32
short 16
char 16
New
byte 8
boolean 1
14
15. Wrapper Classes
Wrapper classes are special type of classes those bind with the simple
types(Built-in data types).
The Number class is an abstract class that defines a super class that is
implemented by the classes that wrap the numeric types(byte, int,
float, double, long, short).
The class name starts with the uppercase., like Integer, Float.
Each and every wrapper class defines its own methods and constant
data members. The constant data members declared with the names
full of uppercases. eg., Integer.MIN_VALUE.
15
16. for example
public static void main(String[] arg)
{
Integer g;
g=45;
System.out.println("ng : “+g);
}
Output
45
16
17. Operators
The operators used in C++ all supported in JAVA too.
The I/O stream operators is not possible in java(<<,>>). But
these operators used as a bitwise operators.
Operator overloading can not be done by the user. But in
JAVA, there are some implemented provisions those using the
pre-defined operators with the class.
The arithmetic, relational operators used with the String class
objects.
17