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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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Hidden content!
#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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