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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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* * ** * **



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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