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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)
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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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