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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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