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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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