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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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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 (-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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* ** * * **

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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