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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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Chapter 1 Solutions
STARTING OUT W/C++,...(LL)-W/ACCESS
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- assume python does not define count method that can be applied to a string to determine the number of occurances of a character within a string. Implement the function numChars that takes a string and a character as arguments and determined and returns how many occurances of the given character occur withing the given stringarrow_forwardConsider the ER diagram of online sales system above. Based on the diagram answer the questions below, a) Based on the ER Diagram, determine the Foreign Key in the Product Table. Just mention the name of the attribute that could be the Foreign Key. b) Mention the relationship between the Order and Customer Entities. You can use the following: 1:1, 1:M, M:1, 0:1, 1:0, M:0, 0:M c) Is there a direct relationship that exists between Store and Customer entities? Answer Yes/No? d) Which of the 4 Entities mention in the diagram can have a recursive relationship? e) If a new entity Order_Details is introduced, will it be a strong entity or weak entity? If it is a weak entity, then mention its type?arrow_forwardNo aiarrow_forward
- Principles of Information Systems (MindTap Course...Computer ScienceISBN:9781285867168Author:Ralph Stair, George ReynoldsPublisher:Cengage LearningC++ for Engineers and ScientistsComputer ScienceISBN:9781133187844Author:Bronson, Gary J.Publisher:Course Technology PtrProgramming Logic & Design ComprehensiveComputer ScienceISBN:9781337669405Author:FARRELLPublisher:Cengage
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