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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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#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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