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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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//

// * ** * *

// *** * *

//

// *** * ** * 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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