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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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Hidden content!
#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)
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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//

// * * * *

// * * ** *

//

// *** * *** 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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