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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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