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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)
0 like 0 dislike
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)
0 like 0 dislike
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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