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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)
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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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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