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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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#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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