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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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