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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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