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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)
0 like 0 dislike
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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