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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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