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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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