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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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