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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)
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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//

// * ** *** * *

// * ** **

//

// ** * * 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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