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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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