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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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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)
0 like 0 dislike
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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