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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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