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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)
0 like 0 dislike
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)
0 like 0 dislike
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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