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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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