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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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