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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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Hidden content!
//

// **** **

// ****** ****

//

// * * 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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