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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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