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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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