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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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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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