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ccc101(3)
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General form of a C program
The structure and layout of a C program, including the use of headers, main function, and other key components.
Basic elements in a C program
Includes data types, variables, assignment statements, input/output functions, and other fundamental building blocks in C programming.
Data types in C
Categories or classifications of data such as integer, float, double, character, etc., which determine the type of values that can be stored and manipulated in a program.
Declaration of variables
The process of specifying the data type and name of a variable in C, allowing it to be used to store and manipulate data in a program.
Assignment statements in C
Statements that assign values to variables, allowing the manipulation and updating of data within a C program.
Reading data values in C
The process of obtaining input data into a C program, often through functions like scanf(), to be used for computation and processing.
Displaying results in C
The output or presentation of computed data or information from a C program to the user, often achieved through functions like printf().
Format strings for data entry and display
Specifies the format for reading and displaying data in C, including the use of placeholders and formatting options with functions like scanf() and printf().
Software Development Method
A structured approach to developing software, involving problem definition, analysis, algorithm design, coding, testing, and maintenance.
Problem Definition
The initial phase where the problem to be solved by the software is clearly identified, along with its requirements and constraints.
Problem Analysis
The process of examining and understanding the problem in detail, including its inputs, outputs, processing requirements, and other relevant factors.
Algorithm Design and Representation
Creating a step-by-step plan or set of instructions for solving the problem, often represented using pseudocode or flowcharts.
Coding and Debugging
The process of translating the algorithm into a programming language (coding) and identifying and fixing errors or issues (debugging).
Conversion of kilometers to miles
Converting measurements in kilometers to equivalent values in miles, often involving multiplication by the conversion factor.
Conversion of miles to kilometers
Converting measurements in miles to equivalent values in kilometers, often involving multiplication by the conversion factor.
Data requirements for conversion program
Input data: distance in kilometers or miles Output: distance converted to miles or kilometers Relationship: 1 mile = 1.609 kilometers
Algorithm for converting miles to kilometers
1. Get the distance in miles 2. Convert the distance to kilometers (distance in kilometers = 1.609 * distance in miles) 3. Display the distance in kilometers
High-level programming language
Refers to a programming language that is closer to human language and easier to read and write, such as C, C++, Java, Python, etc.
Year of development of C programming language
1972, developed by Dennis Ritchie
Implement the algorithm as a program using the C programming language
Implementing the algorithm as a program using C involves translating the algorithm into C code according to the syntax rules of the language.
High-level programming language developed in 1972 by Dennis Ritchie at ATT Bell Laboratories
C is a high-level programming language developed in 1972 by Dennis Ritchie at ATT Bell Laboratories. It was designed to write the UNIX operating system and was originally used primarily for systems programming.
Preprocessor
The preprocessor is a system program that modifies a C program prior to its compilation. It processes the source code before it is passed to the compiler.
Preprocessor Directive
A preprocessor directive is a command that gives instructions to the preprocessor. It begins with a number symbol as its first nonblank character and is used to include header files, define constant macros, and more.
Library
In C programming, a library is a collection of useful functions and symbols that may be accessed by a program. It has a standard header file whose name ends with the symbols '.h'.
Function Body
In C programming, the function body refers to the remaining lines of the program enclosed in curly brackets. It consists of declarations and executable statements.
Main Function
Every C program has a main function, which marks the point where program execution begins. It is a mandatory part of a C program and contains the declarations and executable statements.
Define Directive
The define directive notifies the C preprocessor to replace each occurrence of the identifier NAME by value. It is used to define constant macros, and C program statements cannot change the value associated with the NAME constant macro.
Include Directive
The include directive causes the preprocessor to insert definitions from a standard header file into a program before compilation. It gives the program access to a library and tells the preprocessor where to find the meanings of standard identifiers used in the program.
Reserved Words
Reserved words in C are words that have special meaning and cannot be used for other purposes. They are all specified in lowercase and comprise a complete list of words with special meaning in the C language.
Reserved Words
A word that has special meaning in C and cannot be used for other purposes. All reserved words appear in lowercase. Here is a complete list specified by ANSI (American National Standards Institute).
