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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)
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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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