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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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