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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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