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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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