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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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