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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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