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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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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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