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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)
0 like 0 dislike
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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