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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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