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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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