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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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