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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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Hidden content!
//

// *** ** *

// **** **

//

// * * 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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