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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)
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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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