Answer:
Explanation:
The following code is written in Java. It creates the interface/prototype, the function, and the main method call. The function takes in the three int parameters, adds them, and then checks if the sum equals zero, outputting the correct boolean value. Output can be seen in the picture attached below. Due to technical difficulties I had to add the code as a txt file below.
Answer:
True
Explanation:
The advent of personal computing brought about by the implementation of several technologies including MOSFET, semiconductors, microchip and integrated circuits has revolutionized life in at a very high rate of change where traditional ways of doing things rapidly change and for the first time power was easily reachable by accessing a personal computer.
1. The computer personal computer brought about word processing, where there are very limited errors in individually printed documents and the time to produce a quality document was reduced
2. Email - With the advent of personal computers email, the information and communication time were lowered and it resulted in changes in commerce
3. Video conferencing - It was possible to have video conferencing with people and make decisions regarding direction can be made real time from very distant locations, which improved business reaction time
4. The mouse- The concept of having a graphic user interface improved computer interaction for people with limited programming skills.
Answer:
Following are the code to the given question:
#include <iostream>//header file
using namespace std;
class Window //defining a class Window
{
private:
int width, height;//defining integer variable
public:
friend ostream& operator << (ostream& stm, Window& width)//defining a friend function that takes two parameters
{
return stm<<"a ("<<width.width<<" x "<<width.height<<") window"; //use return keyword that return its values
}
Window(int width, int height): width(width), height(height)//defining parameterized constructor that inherit width and height in its parameters
{}
};
int main() //Main method
{
Window w(80,90);//calling class constructor
cout<<w;//print object value
return 0;
}
Output:
a (80 x 90) window
Explanation:
In the above code, a class "Window" is defined that uses a friend function "ostream& operator" is declared that uses the "ostrea&" as a data type to hold two-variable "stm and w" in its parameter, and declared the parameterized constructor to hold value by inheriting width and height in its parameters.
Inside the main method, a class object is created that calls the constructor and uses the print method to print object value.
Answer:A)Smart-card PINs
Explanation: A pin is the defines as the personal identification number that is allotted to the smart card uniquely that is no other smart can have same number.This number is only known by the smart card holder only.
This number is important because it works for the unlocking of the data that is securely stored and by entering the pin ,it can be decoded.Thus, the other given options are incorrect because they don't use enumeration to hide the data .Thus the correct option is option (A)
