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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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