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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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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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