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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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