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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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