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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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