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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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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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Hidden content!
//

// ***** * *

// ** ** * **

//

// * * **** 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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