C++ Data Types: Primary Data Types (Simple)
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C++ Data Types: Primary Data Types (Simple)

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Questions and Answers

What is the keyword used for the integer data type in C++?

  • number
  • num
  • integer
  • int (correct)
  • What is the typical range of values that an integer data type can store in C++?

  • 0 to 255
  • -2147483648 to 2147483647 (correct)
  • -128 to 127
  • -32768 to 32767
  • Which of the following is a valid way to declare a character variable in C++?

  • char character = (A);
  • char symbol = 'A'; (correct)
  • char digit = A;
  • char letter = "A";
  • What is the keyword used for the boolean data type in C++?

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

    What is the typical memory space required for a character data type in C++?

    <p>1 byte</p> Signup and view all the answers

    Which of the following is a valid way to declare an integer variable in C++?

    <p>int salary = 85000;</p> Signup and view all the answers

    Study Notes

    Data Types in C++ Programming

    • A data type is a set of values together with a set of operations.
    • C++ data types can be categorized into three main categories.

    Primary Data Types (Simple)

    Integer Data Type

    • Keyword: int
    • Requires 4 bytes of memory space
    • Range: -2147483648 to 2147483647
    • Examples: -6728, 0, 78, +763
    • Positive integers do not need a + sign
    • Commas are not used within an integer, but are used to separate items in a list

    Character Data Type

    • Keyword: char
    • Requires 1 byte of memory space
    • Range: -128 to 127 or 0 to 255
    • Used for characters: letters, digits, and special symbols
    • Each character is enclosed in single quotes
    • Examples: 'A', 'a', '0', '*', '+', '$', '&'
    • A blank space is a character and is written ' ', with a space left between the single quotes
    • Example declaration: char test = 'h'; char case = 'A';

    Boolean Data Type

    • Keyword: bool
    • Used for storing boolean or logical values
    • Can store either true or false

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    Description

    Explore the primary data types in C++, specifically focusing on integers. Learn about the 'int' keyword, memory allocation, and the range of values that integers can hold.

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