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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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#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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