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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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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)
0 like 0 dislike
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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