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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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