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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)
0 like 0 dislike
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)
0 like 0 dislike
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)
0 like 0 dislike
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)
0 like 0 dislike
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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