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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)
0 like 0 dislike
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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