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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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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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