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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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