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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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