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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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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 (-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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