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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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