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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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//

// * * ***

// *** **

//

// *** ** 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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