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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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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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