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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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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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