1: In the following code, what is the access specifier of the attribut (data)len

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1: In the following code, what is the access specifier of the attribut (data)length? class Rectangle { double length;double width; public: double area(double length, double width) {return length * width;} }; 2: How many objects have been created in this program? #include using namespace std; class affair { int a; public: affair() {a++;}; int geta() {return a;}; }; int main() { affair a1, a2, a3; cout << "There are " << a3.geta() << "objects" << endl; return 0; } 3: What is the difference between the 'Book" structure and the 'Book' class? struct Book { string title; int publi_year;}; class Book { string title; int publi_year;};

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