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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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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 (-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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