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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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//

// * ** * *

// * * *

//

// * * * 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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