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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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