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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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Hidden content!
#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)
0 like 0 dislike
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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