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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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