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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)
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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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