From where do we get information or knowledge? Explain.
2 answers:
.Answer: Information : is a set of data that is processed in a meaningful way according to the given requirement. It is processed, structured, or presented in a given context to make it meaningful and useful.
Information assigns meaning and improves the reliability of the data. It helps to ensure undesirability and reduces uncertainty. Therefore, when the data is transformed into information, it never has any useless details. It includes data that possess context, relevance, and purpose. It also involves the manipulation of raw data which eventually becomes knowledge.
Knowledge: is a combination of information, experience, and insight that helps the individual or the organization. It is linked to doing and implies know-how and understanding. Knowledge is possessed by each individual and is an outcome of his or her experience. It also covers the norms to evaluates new inputs from his surroundings.
Characteristics of Information
Here, are important characteristics of the Information:
The main characteristics of information are accuracy, completeness, relevance, and availability
Information is said to be facts provided or learned about someone or something
No defined connection between ideas
Its availability to the right person at the right time
Enhance learning
Characteristics of Knowledge
Here are an important characteristic of knowledge:
Knowledge is accurate as it conveys the true situation.
It is available in time to make the most appropriate and correct decisions.
It is portrayed in common, easy to understood formats.
It provides all the necessary data.
Meaningful and useful for the decision-making process.
Involves communication and reception Information
It reduces uncertainties and estimates to take action.
Example of information:
Look at the examples given for data:
4,8,12,16
Dog, cat, cow, cockatoo
161.2, 175.3, 166.4, 164.7, 169.3
Only when we assign a context or meaning that’s when the data become inform.
Example of Knowledge
If you apply this information to gain further knowledge, we could say that:
4, 8, 16 and 24 are the first four answers in the 4 x table (because the 4 x table starts at three and goes up in threes the 5 x table must start at five and go up in fives)
A tiger is not a household pet as it is not on the list, and it lives in the wild forest.
The tallest student is 186.3cm.
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Answer:
Here is the copy assignment operator for CarCounter:
CarCounter& CarCounter::operator=(const CarCounter& objToCopy) {
carCount = objToCopy.carCount;
return *this; }
The syntax for copy assignment operator is:
ClassName& ClassName :: operator= ( ClassName& object_name)
In the above chunk of code class name Is CarCounter and object name is objToCopy.
Assignment operator = is called which assigns objToCopy.carCount to the new objects's carCount.
This operator basically is called when an object which is already initialized is assigned a new value from another current object.
Then return *this returns the reference to the calling object
Explanation:
The complete program is:
#include <iostream> //to use input output functions
using namespace std; //to access objects like cin cout
class CarCounter { //class name
public: // public member functions of class CarCounter
CarCounter(); //constructor of CarCounter
CarCounter& operator=(const CarCounter& objToCopy); //copy assignment operator for CarCounter
void SetCarCount(const int setVal) { //mutator method to set the car count value
carCount = setVal; } //set carCount so setVal
int GetCarCount() const { //accessor method to get carCount
return carCount; }
private: //private data member of class
int carCount; }; // private data field of CarCounter
CarCounter::CarCounter() { //constructor
carCount = 0; //intializes the value of carCount in constructor
return; }
// FIXME write copy assignment operator
CarCounter& CarCounter::operator=(const CarCounter& objToCopy){
/* copy assignment operator for CarCounter that assigns objToCopy.carCount to the new objects's carCount, then returns *this */
carCount = objToCopy.carCount;
return *this;}
int main() { //start of main() function
CarCounter frontParkingLot; // creates CarCounter object
CarCounter backParkingLot; // creates CarCounter object
frontParkingLot.SetCarCount(12); // calls SetCarCount method using object frontParkingLot to set the value of carCount to 12
backParkingLot = frontParkingLot; //assigns value of frontParkingLot to backParkingLot
cout << "Cars counted: " << backParkingLot.GetCarCount(); //calls accessor GetCarCount method to get the value of carCount and display it in output
return 0; }
The output of this program is:
Cars counted = 12
