Concept explainers
Explanation of Solution
Primary activities of a
The three primary activities of a program are as follows:
- Input
- Processing
- Output
Input:
The information that is collected from the outside world is called as input. Input can be sent to a computer using input devices such as keyboard or mouse.
Example:
The input is gathered from the user in a program using a “cin” statement is as shown below:
// variable declaration
float temperature;
// get input from the user using a keyboard
cin >> temperature;
In the above snippet, the variable “temperature” is declared as a float and the input is gotten from the user by using “cin” statement.
Processing:
The information that is gathered from the outside world needs to be processed in some manner to obtain a new resultant value.
- The input gathered from the user needs to be manipulated in some way such as performing arithmetic or logic operations.
Example:
The input gathered from the outside world using “cin” statement will be processed by manipulating the given input variables to obtain a desired resultant value as shown below:
//process that converts the given temperature in Fahrenheit
fahrenheit = (temperature * 9...
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Starting Out With C++, Early Objects - With Access Package
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