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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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