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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)
0 like 0 dislike
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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