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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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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)
0 like 0 dislike
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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