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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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