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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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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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