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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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Hidden content!
#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)
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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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