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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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Hidden content!
#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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