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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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