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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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