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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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