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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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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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