The document discusses using files for input/output in C++ programs. It outlines the 5-step process: 1) include fstream header, 2) declare file stream variables, 3) associate variables with files, 4) use stream variables for input/output, 5) close files. It provides examples of opening files for input/output, reading/writing data, seeking to different positions in a file, and challenges the reader to process Dr. King's speech stored in a file.
This presentation is a part of the COP2272C college level course taught at the Florida Polytechnic University located in Lakeland Florida. The purpose of this course is to introduce students to the C++ language and the fundamentals of object orientated programming..
The course is one semester in length and meets for 2 hours twice a week. The Instructor is Dr. Jim Anderson.
This presentation is a part of the COP2272C college level course taught at the Florida Polytechnic University located in Lakeland Florida. The purpose of this course is to introduce students to the C++ language and the fundamentals of object orientated programming..
The course is one semester in length and meets for 2 hours twice a week. The Instructor is Dr. Jim Anderson.
This presentation is a part of the COP2271C college level course taught at the Florida Polytechnic University located in Lakeland Florida. The purpose of this course is to introduce Freshmen students to both the process of software development and to the Python language.
The course is one semester in length and meets for 2 hours twice a week. The Instructor is Dr. Jim Anderson.
A video of Dr. Anderson using these slides is available on YouTube at:
This presentation is a part of the COP2272C college level course taught at the Florida Polytechnic University located in Lakeland Florida. The purpose of this course is to introduce students to the C++ language and the fundamentals of object orientated programming..
The course is one semester in length and meets for 2 hours twice a week. The Instructor is Dr. Jim Anderson.
This presentation is a part of the COP2272C college level course taught at the Florida Polytechnic University located in Lakeland Florida. The purpose of this course is to introduce students to the C++ language and the fundamentals of object orientated programming..
The course is one semester in length and meets for 2 hours twice a week. The Instructor is Dr. Jim Anderson.
This presentation is a part of the COP2272C college level course taught at the Florida Polytechnic University located in Lakeland Florida. The purpose of this course is to introduce students to the C++ language and the fundamentals of object orientated programming..
The course is one semester in length and meets for 2 hours twice a week. The Instructor is Dr. Jim Anderson.
This presentation is a part of the COP2271C college level course taught at the Florida Polytechnic University located in Lakeland Florida. The purpose of this course is to introduce Freshmen students to both the process of software development and to the Python language.
The course is one semester in length and meets for 2 hours twice a week. The Instructor is Dr. Jim Anderson.
A video of Dr. Anderson using these slides is available on YouTube at:
This presentation is a part of the COP2272C college level course taught at the Florida Polytechnic University located in Lakeland Florida. The purpose of this course is to introduce students to the C++ language and the fundamentals of object orientated programming..
The course is one semester in length and meets for 2 hours twice a week. The Instructor is Dr. Jim Anderson.
Python Foundation – A programmer's introduction to Python concepts & styleKevlin Henney
This is a two-day course in Python programming aimed at professional programmers. The course material provided here is intended to be used by teachers of the language, but individual learners might find some of this useful as well.
The course assume the students already know some Python, but that they feel a need to establish a solid understanding of the language to further develop their skills.
The course is released under Creative Commons Attribution 4.0. Its primary location (along with some sample solutions and the original PowerPoint) is at https://github.com/JonJagger/two-day-courses/tree/master/pf
Feature Extraction for Large-Scale Text CollectionsSease
Feature engineering is a fundamental but poorly documented component in LTR search applications.
As a result, there are still few open access software packages that allow researchers and practitioners to easily simulate a feature extraction pipeline and conduct experiments in a lab setting.
This talk introduces Fxt, an open-source framework to perform efficient and scalable feature extraction. Fxt may be integrated into complex, high-performance software applications to help solve a wide variety of text-based machine learning problems.
The talk details how we built and documented a reproducible feature extraction pipeline with LTR experiments using the ClueWeb09B collection.
This LTR dataset is publicly available.
We’ll also discuss some of the benefits (feature extraction efficiency, model interpretation) of having open access tooling in this area for researchers and practitioners alike.
This presentation is a part of the COP2272C college level course taught at the Florida Polytechnic University located in Lakeland Florida. The purpose of this course is to introduce students to the C++ language and the fundamentals of object orientated programming..
The course is one semester in length and meets for 2 hours twice a week. The Instructor is Dr. Jim Anderson.
Python Foundation – A programmer's introduction to Python concepts & styleKevlin Henney
This is a two-day course in Python programming aimed at professional programmers. The course material provided here is intended to be used by teachers of the language, but individual learners might find some of this useful as well.
The course assume the students already know some Python, but that they feel a need to establish a solid understanding of the language to further develop their skills.
The course is released under Creative Commons Attribution 4.0. Its primary location (along with some sample solutions and the original PowerPoint) is at https://github.com/JonJagger/two-day-courses/tree/master/pf
Feature Extraction for Large-Scale Text CollectionsSease
Feature engineering is a fundamental but poorly documented component in LTR search applications.
As a result, there are still few open access software packages that allow researchers and practitioners to easily simulate a feature extraction pipeline and conduct experiments in a lab setting.
This talk introduces Fxt, an open-source framework to perform efficient and scalable feature extraction. Fxt may be integrated into complex, high-performance software applications to help solve a wide variety of text-based machine learning problems.
The talk details how we built and documented a reproducible feature extraction pipeline with LTR experiments using the ClueWeb09B collection.
This LTR dataset is publicly available.
We’ll also discuss some of the benefits (feature extraction efficiency, model interpretation) of having open access tooling in this area for researchers and practitioners alike.
This presentation is a part of the COP2272C college level course taught at the Florida Polytechnic University located in Lakeland Florida. The purpose of this course is to introduce students to the C++ language and the fundamentals of object orientated programming..
The course is one semester in length and meets for 2 hours twice a week. The Instructor is Dr. Jim Anderson.
This presentation is a part of the COP2271C college level course taught at the Florida Polytechnic University located in Lakeland Florida. The purpose of this course is to introduce Freshmen students to both the process of software development and to the Python language.
The course is one semester in length and meets for 2 hours twice a week. The Instructor is Dr. Jim Anderson.
A video of Dr. Anderson using these slides is available on YouTube at:
https://www.youtube.com/watch?v=N6cQRG5oEAY
File Handling Btech computer science and engineering pptpinuadarsh04
Data is very important. Every organization depends on its data for continuing its business operations. If the data is lost, the organization has to be closed. To store data in a computer, we need files. For example, we can store employee data like employee number, name and salary in a file in the computer and later use it whenever we want.
Similarly, we can store student data like student roll number, name and marks in the computer. In computers’ view, a file is nothing but collection of data that is available to a program. Once we store data in a computer file, we can retrieve it and use it depending on our requirements.
This is the reason computers are primarily created for handling data, especially for storing and retrieving data. In later days, programs are developed to process the data that is stored in the computer.
File Handling is used in C language for store a data permanently in computer.
Using file handling you can store your data in Hard disk.
http://www.tutorial4us.com/cprogramming/c-file-handling
Yihan Lian & Zhibin Hu - Smarter Peach: Add Eyes to Peach Fuzzer [rooted2017]RootedCON
Peach is a smart and widely used fuzzer, which has lots of advantages like cross-platform, aware of file format, extend easily and so on. But when AFL fuzzer has appeared, peach seems to be out of date, since it doesn't have coverage feedback and run slowly. Due to peach is a flexible fuzzer framework and AFL is not, I extended peach with AFL advantages, making it more smarter.Just like AFL, I use LLVM Pass to add coverage feedback, with that I can see which mutation is interesting viz. explores new paths. The resultant effect is that the modified version is more effective.
Francesca Gottschalk - How can education support child empowerment.pptxEduSkills OECD
Francesca Gottschalk from the OECD’s Centre for Educational Research and Innovation presents at the Ask an Expert Webinar: How can education support child empowerment?
Synthetic Fiber Construction in lab .pptxPavel ( NSTU)
Synthetic fiber production is a fascinating and complex field that blends chemistry, engineering, and environmental science. By understanding these aspects, students can gain a comprehensive view of synthetic fiber production, its impact on society and the environment, and the potential for future innovations. Synthetic fibers play a crucial role in modern society, impacting various aspects of daily life, industry, and the environment. ynthetic fibers are integral to modern life, offering a range of benefits from cost-effectiveness and versatility to innovative applications and performance characteristics. While they pose environmental challenges, ongoing research and development aim to create more sustainable and eco-friendly alternatives. Understanding the importance of synthetic fibers helps in appreciating their role in the economy, industry, and daily life, while also emphasizing the need for sustainable practices and innovation.
Model Attribute Check Company Auto PropertyCeline George
In Odoo, the multi-company feature allows you to manage multiple companies within a single Odoo database instance. Each company can have its own configurations while still sharing common resources such as products, customers, and suppliers.
Introduction to AI for Nonprofits with Tapp NetworkTechSoup
Dive into the world of AI! Experts Jon Hill and Tareq Monaur will guide you through AI's role in enhancing nonprofit websites and basic marketing strategies, making it easy to understand and apply.
Biological screening of herbal drugs: Introduction and Need for
Phyto-Pharmacological Screening, New Strategies for evaluating
Natural Products, In vitro evaluation techniques for Antioxidants, Antimicrobial and Anticancer drugs. In vivo evaluation techniques
for Anti-inflammatory, Antiulcer, Anticancer, Wound healing, Antidiabetic, Hepatoprotective, Cardio protective, Diuretics and
Antifertility, Toxicity studies as per OECD guidelines
Honest Reviews of Tim Han LMA Course Program.pptxtimhan337
Personal development courses are widely available today, with each one promising life-changing outcomes. Tim Han’s Life Mastery Achievers (LMA) Course has drawn a lot of interest. In addition to offering my frank assessment of Success Insider’s LMA Course, this piece examines the course’s effects via a variety of Tim Han LMA course reviews and Success Insider comments.
A Strategic Approach: GenAI in EducationPeter Windle
Artificial Intelligence (AI) technologies such as Generative AI, Image Generators and Large Language Models have had a dramatic impact on teaching, learning and assessment over the past 18 months. The most immediate threat AI posed was to Academic Integrity with Higher Education Institutes (HEIs) focusing their efforts on combating the use of GenAI in assessment. Guidelines were developed for staff and students, policies put in place too. Innovative educators have forged paths in the use of Generative AI for teaching, learning and assessments leading to pockets of transformation springing up across HEIs, often with little or no top-down guidance, support or direction.
This Gasta posits a strategic approach to integrating AI into HEIs to prepare staff, students and the curriculum for an evolving world and workplace. We will highlight the advantages of working with these technologies beyond the realm of teaching, learning and assessment by considering prompt engineering skills, industry impact, curriculum changes, and the need for staff upskilling. In contrast, not engaging strategically with Generative AI poses risks, including falling behind peers, missed opportunities and failing to ensure our graduates remain employable. The rapid evolution of AI technologies necessitates a proactive and strategic approach if we are to remain relevant.
How to Make a Field invisible in Odoo 17Celine George
It is possible to hide or invisible some fields in odoo. Commonly using “invisible” attribute in the field definition to invisible the fields. This slide will show how to make a field invisible in odoo 17.
Read| The latest issue of The Challenger is here! We are thrilled to announce that our school paper has qualified for the NATIONAL SCHOOLS PRESS CONFERENCE (NSPC) 2024. Thank you for your unwavering support and trust. Dive into the stories that made us stand out!
2024.06.01 Introducing a competency framework for languag learning materials ...Sandy Millin
http://sandymillin.wordpress.com/iateflwebinar2024
Published classroom materials form the basis of syllabuses, drive teacher professional development, and have a potentially huge influence on learners, teachers and education systems. All teachers also create their own materials, whether a few sentences on a blackboard, a highly-structured fully-realised online course, or anything in between. Despite this, the knowledge and skills needed to create effective language learning materials are rarely part of teacher training, and are mostly learnt by trial and error.
Knowledge and skills frameworks, generally called competency frameworks, for ELT teachers, trainers and managers have existed for a few years now. However, until I created one for my MA dissertation, there wasn’t one drawing together what we need to know and do to be able to effectively produce language learning materials.
This webinar will introduce you to my framework, highlighting the key competencies I identified from my research. It will also show how anybody involved in language teaching (any language, not just English!), teacher training, managing schools or developing language learning materials can benefit from using the framework.
Unit 8 - Information and Communication Technology (Paper I).pdfThiyagu K
This slides describes the basic concepts of ICT, basics of Email, Emerging Technology and Digital Initiatives in Education. This presentations aligns with the UGC Paper I syllabus.
2. Say Hello To Homework #4!
• Last design did not work out – overloaded the traffic light
processors. Going back to HW#2 solution.
• Mayor’s son collected traffic data.
• The city would like you to use the mayor's son's file to
simulate the traffic pattern that happened on that day. They
are interested in having you calculate several values:
– How many cars came from each direction.
– The maximum size of the line of cars that had to wait to get through
the light.
– How long each car had to wait to make it through the stoplight.
– The average amount of time that cars wait based on which direction
they are coming from (four values)
3. Data, Data, Data
• In the real world, your program will need to process data. A
lot of data.
• In this class we’ve already used two different ways to get data
into your programs:
– You typed it in (“input”)
– It was given to you in the form of constants (6 seconds, 9 seconds,
12 seconds)
• Now it’s time to deal with A LOT OF DATA.
• Say hello to files…
Image Credit: paulmjohnstone.wordpress.com
4. What Is A File?
• C++ considers a file just a sequence of bytes
• Each file ends either with an end-of-file marker or at a
specific byte number recorded in an operating-system-
maintained, administrative data structure.
• When a file is opened, an object is created, and a
stream is associated with the object
5. How Do We Teach C++ How To Get
Data From A File
• The standard I/O header file, iostream, contains the
data types and variables that are used only for input
from a standard input device and output to a
standard output device.
• C++ provides a header file called fstream which is
used for file I/O
Image Credit: www.petbucket.com
6. The 5 Step File I/O Process
1. Include the header file fstream in the
program.
2. Declare file stream variables.
3. Associate the file stream variables with the
input/output sources.
4. Use the file stream variables with >>, << or
other input / output functions.
5. Close the files.
Image Credit: www2.exacq.com
7. Step #1: the header file fstream in the
program
• The following statement accomplishes this
task:
#include <fstream>
Image Credit: sivers.org
8. Step #2: Declare file stream variables
• Consider the following statements:
ifstream indata;
ofstream outdata;
• The first statement declares indata to be an
input file stream variable.
• The second statement declares outdata to be
an output file stream variable.
Image Credit: temporaexcel.blogspot.com
9. Step #3: Associate the file stream variables
with the input/output sources
• This step is called “opening the files”
• The stream member function
open is used to open files.
• The syntax for opening a file is:
fileStreamVariable.open(sourceName);
• Here fileStreamVariable is a file stream variable
and sourceName is a file name.
Image Credit: f2.washington.edu
10. Example Of Opening Files
• Assume input data is stored in a file called
prog.dat and prog.out is to be used for output.
• The following statements open prog.dat for
input and prog.out for output.
inData.open(“prog.dat”);
outData.open(“prog.out”);
Image Credit: blogs.voices.com
11. Dealing With
• If the input / output files are located in the same subdirectory as
the C++ source code file, then you do not have to specify the path –
just a file name.
• If the input / output file is located in a different subdirectory, then
you must specify both a path and file name.
• If our data file was located on a flash memory in drive H, then we
would have to use the statement:
inData.open(“h:prog.dat”);
• Note the use of two “” – “” is an
escape character and so to produce
• a “” you need to use “”.
Image Credit: www.career-line.com
12. Step 4: Use the file stream variables with
>>, << or other input / output functions
• You use the file stream variables with >>, << or other input /
output functions.
• The syntax for using >> or << with file stream variables is
exactly the same as the syntax for using them with cin and
cout.
• However, instead of using cin or cout,
you use the file stream variables that
were declared.
Image Credit: www.dreamstime.com
13. Examples Of File Input / Output
• Example: indata >> payrate;
reads data from the file prog.dat and stores it in the variable payrate
• outdata << “The paycheck is: $” << pay << endl;
stores the output The paycheck is $565.78 – in the file prog.out.
• The following code reads one character from a file:
char c;
while (indata.get(c)) // loop getting single characters
cout << c;
• The following code reads one line from a file:
string s;
while (getline(indata,s)) // loop getting lines
cout << s;
Image Credit: groups.etown.eduHW #4 checker
14. Step 5: Close the files
• Closing a file means that the file stream variables are
disassociated from the storage area and are freed.
• Once freed, they can be used for other file I/O.
• Closing an output file ensures that the entire output is sent
to the file – the buffer is emptied.
• You close files by using the stream function close
• Example:
indata.close()
outdata.close()
Image Credit: depositphotos.com
15. The Existence Of Files
• In the case of an input file, the file must exist before the open statement
executes.
• If the file does not exist, then the open statement fails and the input
stream enters the fail state.
– Once a failure has occurred, you must use the function clear to restore the
input stream to a working state.
• An output file does not have to exist before it is opened.
• If the output file does not exist, then the system prepares an empty file for
output.
• If the output file does exist, then
by default its old contents are erased
upon being opened.
Image Credit: warpandwoof.org
16. How To NOT Destroy An Output File
• To add output to the end of an existing file, you can use the
option ios::app as follows.
• Suppose that outData is declared as before and you want
to add the output to the end of the existing file, say
firstProg.out.
• The statement to open this file is:
outData.open(“firstProg.out”, ios::app);
• If the file firstProg.out does not
exist, the system simply creates
an empty file.
Image Credit: www.entrepreneur.com
17. How To Move Around In Both
An Input And An Output File
• Both input and output files provide member functions for
repositioning the file-position pointer (the byte number of
the next byte in the file to be read or written).
• These member functions are seekg (“seek get”) for input
and seekp (“seek put”) for output.
• Each input object has a get pointer, which indicates the
byte number in the file from which the next input is to
occur, and each output object has a put pointer, which
indicates the byte number in the file at which the next
output should be placed.
Image Credit: www.ihatepresentations.com
18. How To Move Around In
An Input File
• The statement: inClientFile.seekg( 0 );
repositions the file-position pointer to the beginning of the file
(location 0) attached to inClientFile.
• A second argument can be specified to indicate the seek direction,
which can be ios::beg (the default) for positioning relative to the
beginning of a stream, ios::cur for positioning relative to the current
position in a tream or ios::end for positioning relative to the end of
a stream.
• The file-position pointer is an integer value that specifies the
location in the file as a number of bytes from the file’s starting
location (this is also referred to as the offset from the beginning of
the file).
Image Credit: www.ihatepresentations.com
19. How To Move Around In An Input File
• Some examples of positioning the get file-
position pointer are:
Image Credit: www.salon.com
20. How To Move Around In
An Output File
• The same operations can be performed using
output member function seekp.
• Member functions tellg and tellp are provided to
return the current locations of the get
and put pointers, respectively.
• The following statement assigns the get file-
position pointer value to a variable:
location = fileObject.tellg();
Image Credit: www.salon.com
21. In Class Programming Challenge:
MLK’s “I Have A Dream Speech”
• Open the file that contains Dr. King’s “I have a dream” speech.
• Read in each line and print the number
of times that you find the words “I”, “we”,
“dream”, and “freedom”.
• Print the total number of words in the
speech.
• Write a version of this speech out to a file
with HTML paragraph formatting: “<p>”
at the start of the paragraph and “</p>”
at the end of each paragraph.
Image Credit: http://www.americanrhetoric.com/speeches/mlkihaveadream.htm
22. What’s In Your C++ Toolbox?
cout / cin #include if/else/
Switch
Math Class String getline While
For do…While Break /
Continue
Arrays Functions
Editor's Notes
New name for the class
I know what this means
Technical professionals are who get hired
This means much more than just having a narrow vertical knowledge of some subject area.
It means that you know how to produce an outcome that I value.
I’m willing to pay you to do that.