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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)
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)
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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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