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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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//

// * *** ***

// *** ** *

//

// ** * * 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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