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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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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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