This document discusses Java file input/output and streams. It covers the core stream classes like InputStream, OutputStream, Reader and Writer and their subclasses. File and FileInputStream/FileOutputStream allow working with files and directories on the file system. The key abstraction is streams, which are linked to physical devices and provide a way to send and receive data through classes that perform input or output of bytes or characters.
the slide about Exception handling in java and the file and io handling in java .inbuilt java packages in for java exception.for beginner in programming
the slide about Exception handling in java and the file and io handling in java .inbuilt java packages in for java exception.for beginner in programming
in this tutorial we will discuss about
exception handling in C#
Exception class
creating user-defined exception
throw keyword
finally keyword
with examples'
Introduction to error and their types
Examples of errors
Introduction to exception and exception handling
Common java exceptions
Examples of exception handling
in this tutorial we will discuss about
exception handling in C#
Exception class
creating user-defined exception
throw keyword
finally keyword
with examples'
Introduction to error and their types
Examples of errors
Introduction to exception and exception handling
Common java exceptions
Examples of exception handling
Java I/O (Input and Output) is used to process the feedback and produce the outcome based on the feedback. Java uses the idea of circulation to make I/O function fast. The java.io package contains all the sessions required for feedback and outcome functions.
Java I/O (Input and Output) is used to process the feedback and produce the outcome based on the feedback. Java uses the idea of circulation to make I/O function fast. The java.io package contains all the sessions required for feedback and outcome functions.
In this core java training session, you will learn Java IO – Files, Streams and
Object Serialization. Topics covered in this session are:
• Java IO
• Files
• Streams
• Byte-based
• Character-based
• Object Serialization
For more information about this course visit on this link: https://www.mindsmapped.com/courses/software-development/learn-java-fundamentals-hands-on-training-on-core-java-concepts/
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.
Dev Dives: Train smarter, not harder – active learning and UiPath LLMs for do...UiPathCommunity
💥 Speed, accuracy, and scaling – discover the superpowers of GenAI in action with UiPath Document Understanding and Communications Mining™:
See how to accelerate model training and optimize model performance with active learning
Learn about the latest enhancements to out-of-the-box document processing – with little to no training required
Get an exclusive demo of the new family of UiPath LLMs – GenAI models specialized for processing different types of documents and messages
This is a hands-on session specifically designed for automation developers and AI enthusiasts seeking to enhance their knowledge in leveraging the latest intelligent document processing capabilities offered by UiPath.
Speakers:
👨🏫 Andras Palfi, Senior Product Manager, UiPath
👩🏫 Lenka Dulovicova, Product Program Manager, UiPath
Builder.ai Founder Sachin Dev Duggal's Strategic Approach to Create an Innova...Ramesh Iyer
In today's fast-changing business world, Companies that adapt and embrace new ideas often need help to keep up with the competition. However, fostering a culture of innovation takes much work. It takes vision, leadership and willingness to take risks in the right proportion. Sachin Dev Duggal, co-founder of Builder.ai, has perfected the art of this balance, creating a company culture where creativity and growth are nurtured at each stage.
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.
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/
Kubernetes & AI - Beauty and the Beast !?! @KCD Istanbul 2024Tobias Schneck
As AI technology is pushing into IT I was wondering myself, as an “infrastructure container kubernetes guy”, 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 benefit’s 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.
Transcript: Selling digital books in 2024: Insights from industry leaders - T...BookNet Canada
The publishing industry has been selling digital audiobooks and ebooks for over a decade and has found its groove. What’s 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.
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.
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...
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Charlie Greenberg, Host
How world-class product teams are winning in the AI era by CEO and Founder, P...
Java - File Input Output Concepts
1. Java - File Input / Output
Dr. P. Victer Paul, Indian Institute of Information Technology Kottayam
2. Topics
Input/output
File
Directories
The Stream Classes
IO Stream Types
Binary Versus Text Files
Byte Streams - InputStreams
Byte Streams - OutputStreams
Character Streams - Reader
Byte Streams - Writer
2Dr. P. Victer Paul, Indian Institute of Information Technology Kottayam
3. Input/output
Java programs perform I/O through streams.
A stream is an abstraction that either produces or
consumes information.
A stream is a sequence of bytes (or data or objects) that
flow from a source to a destination.
A stream is linked to a physical device by the Java I/O
system.
Stream: an object that either,
sends data to its destination (screen, file, etc.) or
accepts data from a source (keyboard, file, etc.)
acts as a transmission/exchange buffer between source and
destination
Java implements streams (IO operations) within class
hierarchies defined in the java.io package.
https://docs.oracle.com/javase/7/docs/api/java/io/package-summary.html
3Dr. P. Victer Paul, Indian Institute of Information Technology Kottayam
4. File
We begin our discussion with one of the most distinctive
I/O classes: File.
Although most of the classes defined by java.io operate
on streams, the File class does not.
It deals directly with files and the file system.
That is, the File class does not specify how information is
retrieved from or stored in files; it describes the
properties of a file itself.
A File object is used to obtain or manipulate the
information associated with a disk file, such as the
permissions, time, date, and directory path, and to
navigate subdirectory hierarchies.
Files are a primary source and destination for data within
many programs. 4Dr. P. Victer Paul, Indian Institute of Information Technology Kottayam
5. File
A directory in Java is treated simply as a File with one
additional property — a list of filenames that can be
examined by the list( ) method.
The following constructors can be used to create File
objects:
File(String directoryPath)
File(String directoryPath, String filename)
where, directoryPath is the path name of the file, filename is the
name of the file or subdirectory,
File defines many methods that obtain the standard
properties of a File object.
For example,
getName( ) returns the name of the file,
getParent( ) returns the name of the parent directory,
and exists( ) returns true if the file exists, false if it does not.
5Dr. P. Victer Paul, Indian Institute of Information Technology Kottayam
7. Directories
A directory is a File that contains a list of other files and
directories.
When you create a File object and it is a directory, the
isDirectory( ) method will return true.
In this case, you can call list( ) on that object to extract
the list of other files and directories inside.
7Dr. P. Victer Paul, Indian Institute of Information Technology Kottayam
9. The Stream Classes
There are two type of stream:
Input stream receives data from a source into a program.
Output stream sends data to a destination from the
program.
Standard input/output stream in Java is represented by
three fields of the System class : in, out and err.
Input Stream Output Stream
Reading:
open a stream
while more information
read information
close the stream
Writing:
open a stream
while more information
write information
close the stream 9Dr. P. Victer Paul, Indian Institute of Information Technology Kottayam
10. IO Stream Types
Two main categories of streams in Java :
Byte Streams –
These provide a way to handle byte oriented
input/output operations.
InputStream and OutputStream classes are at the
top of their hierarchy.
Each of these abstract classes has several concrete
subclasses that handle the differences between
various devices, such as disk files, network
connections, and even memory buffers.
Two of the most important are read( ) and write( ),
which, respectively, read and write bytes of data.
10Dr. P. Victer Paul, Indian Institute of Information Technology Kottayam
11. IO Stream Types
Two main categories of streams in Java :
Character Streams –
These provide a way to handle character oriented
input/output operations.
At the top are two abstract classes, Reader and
Writer
They make use of Unicode and can be
internationalized.
Two of the most important methods are read( ) and
write( ), which read and write characters of data,
respectively.
These methods are overridden by derived stream
classes
11Dr. P. Victer Paul, Indian Institute of Information Technology Kottayam
14. Binary Versus Text Files
Binary files: the bits represent other types of encoded
information, such as executable instructions or numeric
data
these files are easily read by the computer but not
humans
they are not "printable" files
actually, you can print them, but they will be
unintelligible
Text files: the bits represent printable characters
one byte per character for ASCII, the most common
code
for example, Java source files are text files
so is any file created with a "text editor"
14Dr. P. Victer Paul, Indian Institute of Information Technology Kottayam
15. Byte Streams - InputStreams
InputStream is an abstract class that defines Java’s model
of streaming byte input.
Most of the methods in this class will throw an IOException
on error conditions.
Reading bytes:
Used to read 8-bit bytes
Classes of hierarchy of input stream classes
Input Functions
Reading bytes
Closing streams
Marking positions in stream
Skipping in a stream
Finding the number of bytes in a stream
15Dr. P. Victer Paul, Indian Institute of Information Technology Kottayam
16. Methods Defined by InputStream
16Dr. P. Victer Paul, Indian Institute of Information Technology Kottayam
17. InputStream – Subclass hierarchy
InputStream
AudioInputStream
FileInputStream
ObjectInputStream
SequenceInputStream
ByteArrayInputStream
PipedInputStream
FilterInputStream
A FileInputStream
obtains input bytes
from a file in a file
system.
An AudioInputStream is
an input stream with a
specified audio format
and length.
A ByteArrayInputStream
contains an internal
buffer that contains
bytes that may be read
from the stream.
A SequenceInputStream
represents the logical
concatenation of other
input streams.
17Dr. P. Victer Paul, Indian Institute of Information Technology Kottayam
18. Byte Streams - OutputStreams
OutputStream is an abstract class that defines streaming
byte output.
Most of the methods in this class return void and throw
an IOException in the case of errors.
Writing bytes:
Classes of hierarchy of Outputstream classes
Output Functions
Writing bytes
Closing streams
Flushing streams
18Dr. P. Victer Paul, Indian Institute of Information Technology Kottayam
19. Methods Defined by OutputStream
19Dr. P. Victer Paul, Indian Institute of Information Technology Kottayam
20. OutputStream – Subclass hierarchy
FileOtputStream is an
output stream for
writing data to a File.
A ByteArrayInputStream
is a output stream in
which the data is
written into a byte
array.
OutputStream
FileOutputStream
ObjectOutputStream
ByteArrayOutputStream
PipeOutputStream
FilterOutputStream
20Dr. P. Victer Paul, Indian Institute of Information Technology Kottayam
23. Character Streams - Reader
Reader is an abstract class that defines Java’s model of
streaming character input.
All of the methods in this class will throw an IOException
on error conditions.
Reading character:
Used to read characters from the files
Classes of hierarchy of reader class
Functions are similar to InputStream
23Dr. P. Victer Paul, Indian Institute of Information Technology Kottayam
24. Methods Defined by Reader
24Dr. P. Victer Paul, Indian Institute of Information Technology Kottayam
25. Reader – Subclass hierarchy
Reader
BufferedReader
InputStreamReader
StringReader
CharArrayReader
PipedReader
FilterReader
25Dr. P. Victer Paul, Indian Institute of Information Technology Kottayam
26. Byte Streams - Writer
Writer is an abstract class that defines streaming character
output.
All of the methods in this class throw an IOException
in the case of errors.
Writing characters:
Classes of hierarchy of writer class
Output Functions
Writing bytes
Closing streams
Flushing streams
26Dr. P. Victer Paul, Indian Institute of Information Technology Kottayam
27. Methods Defined by Writer
27Dr. P. Victer Paul, Indian Institute of Information Technology Kottayam
28. Writer – Subclass hierarchy
Writer
BufferedWriter
OutputStreamWriter
StringWriter
CharArrayWriter
PipedWriter
FilterWriter
PrintWriter
28Dr. P. Victer Paul, Indian Institute of Information Technology Kottayam