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Write class shape with width and height following a constructor that gives value to them.
Then define two sub-classes triangle and rectangle.
Those sub-classes can calculate the area of the shape area().
You need to follow the main() below. Please complete the program.

int main (){

    Rectangle rect;
    Triangle tri;
    rect.set_data (5,3);
    tri.set_data (2,5);
    cout << rect.area() << ";" << tri.area() << endl;
    return 0;
}

 

[Exercise] Coding (C) - asked in C++
ID: 24389 - Available when: Unlimited - Due to: Unlimited

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#include * ** **



using namespace std;



class shape  {
** * * * * *
** * * * **** * ** *** * * *** * * * * set_data(int x, int y)
* * * * * * * ** ** ** * * *
*** * ** ******* ** * *** *** ** * * ** ** ** *** * ** = x;
** ****** ** * ** * *** *** * * * *** ** * ** * ******* = y;
* * *** * * * *** * ** * ***


**** * ** * * *** ** ****
** * ** ** ** ****** **** ** **** ** width;
** *** ** * * * * * * *** * ** * *** height;

};



class Rectangle: public shape {
** **** ** ** ** * ** *** ***
* **** ** *** ** * ** * * * ** * ** area() {
** * ******* * * ***** * ** **** ***** ** (width * height);
** ***** * * ** * *

};



class Triangle: public shape {
* * * * ** *** *
*** *** * ****** *** * * * * * **** area() {
* ** ** * * *** **** ** * * * * * ** * * * (width * height / 2);
* ***** * * * ** * * ** *** *

};



int main(void) {
*** * * * * * ** * * * **** rect;
* ** * **** *** **** tri;


* *** * *** **** ** 3);
** **** **** * * *** *** * 5);


** * * *** *** * ** *** * * rect.area() ** * ** * * ***** * *** * ** tri.area() * * **** endl;


** ****** ***** * * * 0;

}
answered by (126 points)
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#include ** **** ***



using * * std;



class Shape

{
* ***
** ** *** width, height;

public:
* * * ** *** **** set_data (float a, float b)
* * * ** * **** ***
* ** *** ** * ** ** * ** * ******** *** ** ** = a;
* * **** * * ** ** * ** * * * * * ****** ** * * = b;
* ***** ****** *

};



class *** ** public Shape

{

public:
* * * ***** * *** * area ()
* *** * **** * * ** **
***** * * * ** *** * ** * ** ***** ** * * (width * height);
* *** * * * ** ** ** *

};



class *** *** public Shape

{
***
**** * *** * ** **** * area ()
* * ** *** ***** ** *
** * ** *** * ** ** ** * * *** ** * * ** * *** (width * height / 2);
**** ** *** ** ** * *

};



int main (){
** * ** * * * **
* ** *** ** * ** ** * * rect;
*** *** * * * * * * tri;
** ** **** * * *** ** **** ******* (5,3);
* * * ***** * ** * * * (2,5);
*** ** *** * * * * ** * * * *** * * ** * * ***** **** * * *** * * ** * * **** endl;
** * * **** * **** ** 0;

}
answered by (-215 points)
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#include * * ** **** *



using *** * std;



class Shape

{
** **
** * * ****** * *** *** ** width, height;

public:
** * ****** ** * set_data (float a, float b)
* ** * * * * * *** * *
* * * * * ** ** **** * ** * **** * **** * * = a;
**** * * * ** ** *** ** * **** * *** ** *** * * ***** * ** = b;
* ** ** * *** ** ** *

};



class ** public Shape

{

public:
* * * *** * * ****** * * area ()
*** ** ** * **
* * ** ** * * * *** ** * *** * ** * ***** (width * height);
* ** * * *** *****

};



class ** public Shape

{
* * *
**** * * * * *** * *** area ()
** ** * ** ** **
****** * *** * **** ** * * *** *** * * **** * ** (width * height / 2);
* * * * *** ***** ***

};



int main (){
*** * * * ** * ** * **
* * * * * * * * * ** ** *** rect;
* * * * * * *** ***** * * tri;
** * * ** * ** * * * *** (5,3);
** * ** * * * *** ** ** * (2,5);
* * **** * *** *** ** * ** * * * **** ** *** * ** * * * *** * * ** * ***** * ** endl;
*** *** ** * ** * ** 0;

}
answered by (-298 points)
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Hidden content!
#include * * * * **



using * * std;



class Shape

{
* ***
*** * *** *** * * width, height;

public:
** * ** ** * * * * set_data (float a, float b)
*** * * *** *** * * *
** *** *** * *** ****** ***** * ** * * * *** * = a;
**** * * * ** * ** * * ** **** * * = b;
* ** ** ***** * * * **

};



class * * * * public Shape

{

public:
* * *** ***** * * * area ()
* * * * * * ***
* * * * * * ** **** * ***** ** *** ** (width * height);
* * *** ******** * * *

};



class * * * public Shape

{
***
** ****** ** ** * ****** area ()
* * * * * * *
****** * ** ** * *** ***** * * ** ** * * * ** * **** (width * height / 2);
** * **** ** *

};



int main (){
* ** * ** ****** ***
*** ** ******** * ** **** * rect;
*** ** ** *** tri;
** * ** ** * ** ** * **** (5,3);
* * * *** * ****** *** * * * * (2,5);
* ** *** * ** * * * ** * * ** * * * * * * * ** * **** * * *** * ** ** * * * ** endl;
* ** * * * ** * ****** 0;

}
answered by (237 points)
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Hidden content!
* * * **** * *

using * std;



class * * *
* *** * ** * * **
** * * *** * ** * * * ** * width;
** * *** * ***** ** ** ** height;
** ** * **** * * * ** ** * *** height);
* * ** **** ** *** ** area();

};



class * **
* ** * ** * * *** ** *
** *** * * * ** ** * * width;
** ** ** * **** *** * * * height;
****** * * ** ** ** ***** **** * * ** height);
* *** **** * * * *** * area();

};



void ***** :: * ***** swidth ,float ** *
** * * *** ** * * * * ** = swidth;
* * *** *** * ** * * ** *** = *

}



float *** :: area(){
* *** ** * * ** * * * * * * * * * **** (width * ***

}



void * *** :: *** * swidth ,float * **
** * * * ** * * ** ** * = swidth;
** ** * * * * * * ***** * * = **

}



float Triangle :: area(){
* ** ** ** *** * ** * ******** * * * * * ** **** ((width * * * **

}



int main (){
** ** ** ** ** * ***** ** ** rect;
* *** ** * * * * * * tri;
* * * * ** * * ****** * ** * ****** (5,3);
**** * ** ** * ** * **** * * * (2,5);
***** ******* * *** * * ** * **** * * * *** ** * *** * * *** * ** endl;
*** * ** * * *** * * 0;

}
answered by (-136 points)
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Hidden content!
* * * ** * * ***

using *** std;



class * **
* * ***** ** * ****
* *** * * ** * * width;
** * ** ** * ***** * **** ** height;
** * * * *** * *** * ** * height);
* ** *** * * ** ** ** area();

};



class ** **
** ** * *** * ** ** *** * *
* **** ** * * ** width;
* ** ** ** * * * height;
* ****** ** ** * ** ** * ** * * * ** * * *
** * * ** * * **** * area();

};



void ***** * :: * * *** * swidth ,float ****
* **** ** ** * * ** * = swidth;
* *** *** ** * ** * ****** = sheight;

}



float **** :: area(){
* *** **** * * * ** *** **** ****** * ** * ** * * (width * *******

}



void ** :: *** * ** swidth ,float ** **
** * *** * * ** *** * ** = swidth;
** ** *** ** * ** * * * * = sheight;

}



float Triangle :: area(){
*** ** ********* **** **** * * ** ** ***



int main (){
* *** * ** * * ** ***** ** * rect;
*** * ** *** * ** * * * tri;
* **** * * **** ** ******* *** (5,3);
**** ** * * ** * * * (2,5);
*** * * * **** * ** * * * ***** * * ** **** ** * ** **** * * **** * *** ** endl;
** * ** * * ** * ** * ** 0;

}
answered by (-136 points)
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Hidden content!
* *** * ** *
* * **** * *



using namespace std;



class Rectangle{

public:
** ***** * * * *** set_data(int H, int W){
* ** ** ****** * * * * * * * * ** * * * ** * * * * = W;
** **** * * ***** ** * ** * ** ** * *** * * = H;
*** * * * * * ** * *
* ** * ** ** * * * area(){
* * ** ** ** *** **** * ** ** * * * ** *** * **** **
*** * ** * * * ***



private:
* ** ** * *** * * * * * r_width;
* * * * * ***** * * * ** r_height;



};



class Triangle{

public:
****** * * ****** * * set_data(int H, int W){
** *** *** ** * ** *** ** * *** * * ** *** * *** ** = W;
* ** * * ** ** * ** * * * * ** ******* * * = H;
***** ** ** ***
*** ** ***** * area(){
* *** * **** ***** ** * ** ** ** ***** * ** * *
*** * ** *******

private:
*** ** * ** ****** t_width;
* * * *** ** * ** ** *** ** t_height;

};



int main()

{
***** *** *** * * * * ** * rect;
* * ** * * * tri;
* * * * *** * * * ** * (5,3);
** * * * *** ** * * (2,5);
* *** *** ** * ** * * * * *** ****** rect.area() *** **** *** * * ** * * ** * << tri.area() << endl;
** ** ** *** ** *** 0;

}
answered by (-368 points)
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Hidden content!
* * ** * * ** ** ** **



using * * std;



class {
** ** **** ******* ** width, * *
* * **** * * * * *
* ** ** ****** * * *** * * *
* *** * * *** * ** * ** area() * * ** *

};



void ** * **** (int x, int y) {
*** ***** * * * * = x;
* ** ** *** = y;

}



class ** * {
* * *** **** * base, **
** ** ** *****
* *** **** ** * * * *** * ** * * *
* * *** **** * * *** area() {return * * *

};



void * * * * *** (int x, int y) {
** **** ******** * = x;
*** **** * = y;

}



int main (){


** *** ** ** ** ** * **** rect;
** ** ** ** * * ** * *** tri;
* **** *** *** * ** * * ** (5,3);
* ** * * * *** *** * * (2,5);
* *** * * ** ** *** * * ** * * * * *** * **** ** **** * ** * ** * ** ** ** * * *** * endl;
***** * ***** ** ** * ** ** 0;

}
answered by (-218 points)
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//

// * * *

// ** **

//

// * * by * ** * on * * * *

// *** **** © 2017年 * *** All rights * **

//


* ** * * ** *
* * ** * ** * *

#include ***** ** ****

using *** std;



class shape {

public:
* * ********* * *** * **** * width, double height){
* * * * * * ** *** ** ***** * ** * ** ** = width;
* * **** ** * * ** ** *** * * * * * * ** = height;
* ***** * * * ** ** **** *



public:
**** * * * * ** ** * w;
*** ***** * * ** * * * ***** h;

};



class ** public shape{

public:
*** *** * ******* **** ** area(){
** * ** * ******* * * ** **** * * * * ****** * ** * * ***
* * *** * *** * * **

};



class * ** public shape{

public:
** ** ** * *** ***** * * * area(){
*** * ** ** **** ************ *** * *** **** * *** *** *
** * * * *** * * *** *

};



int main (){
** *** * * * * *
* **** *** * * * * rect;
*** *** *** ** * * *** * tri;
** *** ** *** ****** * * ** (5,3);
** ** * **** * *** (2,5);
* ** * ** * ** *** *** * * * * * * * * *** * ** * **** * * **** * ** **** ***** endl;
* *** ** ** * *** * 0;

}
answered by (-368 points)
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Hidden content!
*** * **** ** * * *

using * * std;



class *

{

public:
***** ** * * *** * *** * * a,int b);
* * * * * ***** ** area();
** *** * **** * *** ** a_,b_;

};



void ** * **** * a,int b)

{
* * ** *** * * ***
** * * ** ** * *** * ** ** ***

}



int ***** * *

{
** ** * * ** ** * *** ***

}





class *

{
* *
* * * * * *** * * ** * * * * * * * a,int b);
***** ** * * * area();
* ****** * * ** ** * ** a_,b_;

};



void ** * * *** * a,int b)

{
** * ** * * * *
* * * *** ** * * **

}



int * ****

{
* * * * * **** * * * a_*b_;

}



int main ()

{
*** *** * * ** * * rect;
* ** * * * ******* ** tri;
* ** * * * * * *** * * * * * * (5,3);
* * ** * * * **** ** (2,5);
* **** * * ** ** ** **** * **** ** * * * * *** *** * **** * *** * * * **** * ** endl;
** ** ** ** *** *** ** * * 0;

}
answered by (-324 points)
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