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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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Hidden content!
//

// * * * * *

// ** * ** *

//

// * * * ** 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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