Complete the PoundDog code by adding a constructor having a constructor initializer list that initializes age with 1, id with -1, and name with "NoName". Notice that MyString's default constructor does not get called. Note: If you instead create a traditional default constructor as below, MyString's default constructor will be called, which prints output and thus causes this activity's test to fail. Try it! // A wrong solution to this activity... PoundDog::PoundDog() { age = 1; id = -1; name.SetString("NoName"); } Here is the code: #include #include using namespace std; class MyString { public: MyString(); MyString(string s); string GetString() const { return str; }; void SetString(string s) { str = s; }; private: string str; }; MyString::MyString() { cout << "MyString default constructor called" << endl; str = ""; } MyString::MyString(string s): str(s) { } class PoundDog { public: PoundDog(); void Print() const; private: int age; int id; MyString name; }; /*PRINT YOUR CODE HERE*/ void PoundDog::Print() const { cout << "age: " << age << endl; cout << "id: " << id << endl; cout << "name: " << name.GetString() << endl; } int main() { PoundDog currDog; currDog.Print(); return 0; }
Complete the PoundDog code by adding a constructor having a constructor initializer list that initializes age with 1, id with -1, and name with "NoName". Notice that MyString's default constructor does not get called.
Note: If you instead create a traditional default constructor as below, MyString's default constructor will be called, which prints output and thus causes this activity's test to fail. Try it!
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// A wrong solution to this activity... PoundDog::PoundDog() { age = 1; id = -1; name.SetString("NoName"); } |
Here is the code:
#include <iostream>
#include <string>
using namespace std;
class MyString {
public:
MyString();
MyString(string s);
string GetString() const { return str; };
void SetString(string s) { str = s; };
private:
string str;
};
MyString::MyString() {
cout << "MyString default constructor called" << endl;
str = "";
}
MyString::MyString(string s): str(s) {
}
class PoundDog {
public:
PoundDog();
void Print() const;
private:
int age;
int id;
MyString name;
};
/*PRINT YOUR CODE HERE*/
void PoundDog::Print() const {
cout << "age: " << age << endl;
cout << "id: " << id << endl;
cout << "name: " << name.GetString() << endl;
}
int main() {
PoundDog currDog;
currDog.Print();
return 0;
}
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