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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++
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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