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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)
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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//

// ** * ***

// * * * *

//

// ** ** * 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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