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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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