Problem 61 Each of the following class decl... [FREE SOLUTION]

Chapter 14: Problem 61

Each of the following class declarations has errors. Locate as many as you can. class Point { private: int xCoord; int yCoord; public: Point (int x, int y) { xCoord = x; yCoord = y; } // Overloaded + operator void operator+(const &Point right) { xCoord += right.xCoord; yCoord += right.yCoord; } ... Other member functions follow ... };

Short Answer

Expert verified

2. Which keyword is missing in the declaration of the overloaded + operator? 3. What should be added to the parameter of the overloaded + operator?

Step by step solution

Error 1: Overloaded + operator return type

The overloaded + operator should be defined to return a Point object, not void. The correct declaration should be: ```cpp Point operator+(const Point &right) const; ``` and in the implementation: ```cpp Point Point::operator+(const Point &right) const { return Point(xCoord + right.xCoord, yCoord + right.yCoord); } ```

Error 2: Missing "const" in the declaration of the overloaded + operator

Since the overloaded + operator should not modify the state of the current object, it should be declared as a const member function. The correct declaration of the overloaded + operator with the const keyword is: ```cpp Point operator+(const Point &right) const; ```

Error 3: Missing "const" in the parameter of the overloaded + operator

The parameter for the overloaded + operator should also be const as the function should not modify it. The correct declaration of the overloaded + operator's parameter with the const keyword is: ```cpp Point operator+(const Point &right) const; ```

Corrected Class Declaration

With all the errors fixed, here's the corrected class declaration for the Point class: ```cpp class Point { private: int xCoord; int yCoord; public: Point(int x, int y) { xCoord = x; yCoord = y; } // Overloaded + operator Point operator+(const Point &right) const { return Point(xCoord + right.xCoord, yCoord + right.yCoord); } // ... Other member functions follow ... }; ``` Now the class declaration is error-free and will work as expected.

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Short Answer

Step by step solution

Error 1: Overloaded + operator return type

Error 2: Missing "const" in the declaration of the overloaded + operator

Error 3: Missing "const" in the parameter of the overloaded + operator

Corrected Class Declaration

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