C Programming: Main Function and Program Structure
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Questions and Answers

What does the left brace { indicate in a C program?

  • Beginning of the main() function (correct)
  • End of the user-defined function
  • Beginning of the user-defined function
  • End of the main() function

    • Which part of a C program is used to declare and initialize variables, arrays, and functions?

  • Statements
  • User-defined functions
  • Braces
  • Declarations (correct)

    • What do user-defined functions in a C program contain?

  • Comments
  • Control statements
  • Set of statements to perform a specific task (correct)
  • Input-output statements

    • What is the keyword used to represent character data type in C?

    <p>'Char'</p> Signup and view all the answers

    What type of characters does the source character set in C language include?

    <p>Alphabets, decimal digits, special symbols</p> Signup and view all the answers

    What do pre-processor statements in a C program begin with?

    <h1>symbol</h1> Signup and view all the answers

    What does the execution character set in C language consist of?

    <p>Invisible characters and escape sequences</p> Signup and view all the answers

    What is the purpose of the C pre-processor directives?

    <p>To include header files and symbolic constants</p> Signup and view all the answers

    What is the purpose of the 'putchar' function?

    <p>To express data as an argument to the function</p> Signup and view all the answers

    Which function can be used to print data from the computer’s memory onto a standard output device?

    <p>printf</p> Signup and view all the answers

    What does the 'scanf' function do?

    <p>Inputs data into the memory from the standard input device</p> Signup and view all the answers

    What is the general form of an assignment statement in C programming?

    <p>&lt; variable name&gt; = &lt; arithmetic expression&gt; ;</p> Signup and view all the answers

    Study Notes

    C Programming Basics

    • The left brace { indicates the beginning of a block of code in a C program, often used to define the body of functions, loops, or conditional statements.
    • Variable, array, and function declarations and initializations occur in the declaration section of a C program, typically at the beginning of functions.

    User-Defined Functions

    • User-defined functions in C contain the function header, the parameter list, and the function body, which includes executable statements.

    Data Types and Characters

    • The keyword char represents the character data type in C, which is used to store single characters.
    • The source character set in C includes letters (both upper and lower case), digits, and various punctuation marks and symbols.

    Pre-Processor Statements

    • Pre-processor statements in a C program begin with a hash symbol #, indicating pre-processor directives like #include and #define.

    Execution Character Set

    • The execution character set consists of the set of characters that are valid within the program code during the execution of a C program.

    Pre-Processor Directives

    • The C pre-processor directives serve to instruct the compiler to perform specific preprocessing tasks before the actual compilation begins, such as including header files and defining macros.

    Standard Output Functions

    • The putchar function is used to output a single character to the standard output device (usually the console).
    • The printf function can be utilized to print formatted data from memory onto a standard output device, presenting data in a specified format.

    Input Functions

    • The scanf function is employed for input operations, allowing the program to read formatted input from the standard input device (typically the keyboard).

    Assignment Statements

    • The general form of an assignment statement in C programming follows the syntax: variable = expression;, where a variable is assigned the value of an expression or another variable.

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    Quiz Team

    Description

    This quiz covers the main function in C programming, which is essential for indicating the start of program execution. It also includes the structure of a C program, covering topics such as the use of curly braces and declarations.

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