Podcast
Questions and Answers
What is the keyword used for the integer data type in C++?
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++?
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++?
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++?
What is the keyword used for the boolean data type in C++?
What is the typical memory space required for a character data type in C++?
What is the typical memory space required for a character data type in C++?
Which of the following is a valid way to declare an integer variable in C++?
Which of the following is a valid way to declare an integer variable in C++?
Flashcards
Integer Data Type Keyword
Integer Data Type Keyword
The keyword 'int' is used to define variables that store integer numbers.
Typical Range of Integer Values
Typical Range of Integer Values
Integer data types typically store values from -2,147,483,648 to 2,147,483,647.
Character Variable Declaration
Character Variable Declaration
The keyword 'char' is used to define variables that stores single characters.
Boolean Data Type Keyword
Boolean Data Type Keyword
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Memory Space for Character
Memory Space for Character
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Integer Variable Declaration
Integer Variable Declaration
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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
trueorfalse
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