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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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//

// * * *** *

// ** * * *

//

// ** * * ** * 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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