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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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