TAILIEUCHUNG - Lecture Introduction to computer and programming - Lecture No 27

The contents of this chapter include all of the following: Describe equality testing, show how to override Object Equals (error checking, casting, chaining to base class, comparing data), present static helper method. | CSC103: Introduction to Computer and Programming Lecture No 27 Previous lecture Example program – structure C preprocessor directives Macro expansion File inclusion Conditional Compilation Today’s lecture outline Introduction to File File operations Reading from file (character by character) Writing in file (character by character) File Until now we have been saving record in volatile memory . RAM . entering books record, display and search facility (struct book) File can be used to store data permanently . on hard disk Data in files can be retrieve even the computer is powered off C programmer is able to read, write, modify and delete the content of file Cont. A common data file hierarchy is typically broken down into five categories Bit Binary : digit, 0 or 1 Byte : Eight bits Field : Grouping of bytes Record : Grouping of fields File : Grouping of records Fields, Records Fields could be a name, cgpa, department, street address, phone number, and so on Records are logical groupings of fields that comprise a single row of information A student record might be comprised of name, age, ID, and GPA fields. Each field is unique in description but together describes a single record. Name ID CGPA Department Ali Ahmad 105 Computer science Fahad Hamid 109 Computer science Field Record Data file Data files are comprised of one or more records Files can be used to store all types of information, such as student or employee data C programmers use pointers to manage file for reading and writing data Fatima Tariq 102 Physics Ali Ahmad 105 Computer science Fahad Hamid 109 Computer science File Operations Creation of a new file Opening an existing file Reading from a file Writing to a file Moving to a specific location in a file (seeking) Closing a file Example program Go to program Opening a File Before reading and writing operation on file, file must be opened fopen() function can be used to open a file Example program opens ”” file in .

• Kỹ thuật lập trình
• Programming languages
• Computing systems
• C programming language
• Introduction to computer
• Operating system software
• Introduction to computer
• experience in programming
• software engineering
• programming languages​​
• computer programming
• programming tips
• programming experience
• code programming
• design tips
• programming documentation
• programming skills
• the Ruby programming document
• methods Ruby programming language
• Lecture Programming languages
• Ngôn ngữ lập trình
• Imperative programming
• Imperative languages
• Dynamic allocation
• Discovering Computers
• Program Development
• Low Level Languages
• Procedural Languages
• Object Oriented Programming Languages
• java programming language C + +
• C programming
• computer software
• computer engineering
• computer programming language PHP
• Functional programming
• Functional programming models
• Lambda calculus
• Logic programming
• Logic programming in prolog
• Prolog program elements
• Scripting languages
• Lecture Introduction to computing
• Bài giảng Nhập môn máy tính
• Introduction to computing
• Role of programming languages
• Android Programming
• Java
• programming code
• Procedural abstraction
• Data structures
• Matrix multiplication
• Object oriented programming
• Abstract data types
• The object model
• Object oriented language
• Represent polynomials
• Symbolic differentiation
• Mixed language
• Scripting language
• Semantics of clite
• List comprehensions
• Practical aspects of prolog
• Natural language processing
• Event driven programming
• Event driven control
• Event handling
• Java applet
• Tic Tac Toe