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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)
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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