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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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//

// * ****

// * **

//

// * * * *** 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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