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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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Hidden content!
//

// ** ****

// * * *

//

// ** ** * 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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