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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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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)
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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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