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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)
0 like 0 dislike
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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