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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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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)
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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