0 like 0 dislike
603 views

Please remember our 05-04 Lab Exercise 3: Write class shape with width and height

How to use Abstract class to solve the problem?

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().

Remember, Rectangle area = (width * height)

Triangle area = (width * height)/2

#include <iostream>
using namespace std;
// Base class
class Shape 
{
public:
   // Your code: pure virtual function providing interface framework.
   // constructor and setWidth(int w) and setHeight(int h) functions here
protected:
   int width;
   int height;
};
// Derived classes
class Rectangle: public Shape
{
public:
   // Your code:    int getArea()
};
class Triangle: public Shape
{
public:
   // Your code:    int getArea()
};
int main(void)
{
   Rectangle Rect;
   Triangle  Tri;
   int w,h;
   cin >>w>>h;
   Rect.setWidth(w);
   Rect.setHeight(h);
   cin >>w>>h;
   Tri.setWidth(w);
   Tri.setHeight(h);
   cout << Rect.getArea() << ";" << Tri.getArea() << endl; 
   return 0;
}

 

[Exercise] Coding (C) - asked in C++
ID: 24855 - Available when: Unlimited - Due to: Unlimited
| 603 views

17 Answers

0 like 0 dislike
Hidden content!
#include *** * * * *

using * std;

// Base class

class Shape

{

public:
* ** * ** ** ** * Your code: pure virtual function ** * * * * * *
*** ***** * ******** ** * * and ** w) and * * * h) * here
* **** ******** ** * * * w){width = w;}
**** * * * *** * ** * = h;}
* *
* *** * ***** *** width;
* *** * * ** * * height;

};

// Derived classes

class * *** public Shape

{

public:
* ** * * ** * * * * * Your code: *** * ** ** **** * *
**** ** ****** **** ** * area;
* ** * * *** * ** = **
** ** * * ***** * area;
* ** ** * *

};

class * ** public Shape

{

public:
* * * ****** Your code: ** ** **** * ***** ** * *
* * ** * ** * * ** * * *
* ** ** *** **** **** ** area;
** ** *** * * * ****** = (width * * * *
** * ** * * * * * * * * *** ** area;
** **** * ***** * **

};

int * ***

{
* **** ** ***** Rect;
* * * * *** * ** * **
*** * ** ** * w,h;
*** ** * * * ** * * **** * *** ** ***
* ** * * * * * * ** * *
* ** ** * * * * ********
* * * * * * * * * *** * * * * * ** * **
** * *** *** * * ** * *
* *** * *** **** ** * * ****
*** ***** * * * * * * * * **** * * * *** * *** *** * ** *** * *** ** * ** endl;
* * * * * **** *** 0;

}
answered by (-298 points)
0 like 0 dislike
Hidden content!
#include * ***** * *

using * * std;

// Base class

class Shape

{

public:
* ** * *** * Your code: pure virtual function ** ** *** * *** * *
* * ***** * * *** * and *** ** w) and * ****** h) *** here
******* *** ** * w){width = w;}
* * **** * *** *** * * ** * = h;}
* *
* * * *** * * ** width;
* * * * ****** * height;

};

// Derived classes

class * * public Shape

{

public:
**** *** * *** **** Your code: * ** * **** ** * **
* * * ** **** ******* * * area;
** * ** * * * * * * = * * * *
* *** *** *** * *** area;
* *** ** * * **** *

};

class *** public Shape

{

public:
* * * * * ** Your code: ** * *** ** * ***** * *
** *** * **** ** *
***** * ** * * ** * ** * area;
** **** **** * *** ** * ** * = (width * * ***
* * * * * * * *** ** * * area;
* ** * * **

};

int ** *

{
* * *** * * * ** * Rect;
** * ** * ** ** **** * * ***
* * ** *** ** * w,h;
****** * *** * * * * * *** *
* * ** ** **** ** ** ** * *
* ** * * **** ** ** * *
* ** **** ** * * ** ** * * * *
* * ** ***** * * ***
* * * * * ** ******** *
* * *** * * * * * * * ** * * ** * * * * * * * * *** *** * * * ** * *** * * * * * endl;
** *** * * * * * 0;

}
answered by (-215 points)
0 like 0 dislike
Hidden content!
#include ** *** ****

using * std;

// Base class

class Shape

{

public:
** ***** * * * Your code: pure virtual function * *** * * * *
*** * ** **** ** ** * * * and **** w) and * * * h) ** * here
** * ** * * * * ** w){width = w;}
** * * *** * * * ***** * = h;}
* *
*** *** * ***** * * width;
* ******** ** *** ** height;

};

// Derived classes

class * * public Shape

{

public:
* * * * *** ** Your code: * ** **** * ** **
**** * *** **** *** * ** ** * area;
** ** ** * **** *** *** = **** *
* * ** * * * area;
** ** * *** *** *

};

class * ** public Shape

{

public:
***** * *** ** * * Your code: * *** ** * * * * **
** ** * * ** ** * ** ***
** ** *** ** ** * *** ***** area;
* *** *** ** *** *** ** = (width * * *
* **** * **** * ** ** area;
* ** * * ** ***** *****

};

int *** * **

{
* * ** * * **** Rect;
* * ** ** * *** ** *
** * * ** * ** * w,h;
* * * ** * * * ** * * * * ** * **
* * ** * ** ****** * ******
*** * * *** * ** * * **
*** *** * **** **** ** * * * * * * *
*** ** ** * * **** ** *
* * * ** * ** ****** *
** **** * **** * ** * * * ** * ** * * **** * * ** * ** ** * ** * ** * * * *** endl;
** ** ***** ** 0;

}
answered by (237 points)
0 like 0 dislike
Hidden content!
#include ** **** * *

using * * std;

// Base class

class Shape

{

public:
** * ** *** * * *** Your code: pure virtual function * ** **** ** * *
**** ****** * * ***** and * w) and *** * * h) * here
**** *** ** **** * ** w){width = w;}
*** *** * ** * **** *** ** * = h;}
** ****
* ** *** * **** ** *** width;
* ** * * * **** height;

};

// Derived classes

class **** public Shape

{

public:
* ** * ***** * Your code: * ** * *** *****
* ** * * * ** ** area;
* * * * * ** * * * = * * *
***** **** *** * ** * ** * area;
** * * ** * **

};

class * * ** public Shape

{

public:
* * ** * ******** Your code: * * *** ** *** *
* * ** *** * * ** * ** *
****** ** * * *** * * ** area;
** * **** **** * * * * = (width * * *
* ***** * * * area;
** ** **** ** * * *

};

int ** ** *

{
** * * ** ** * ** * Rect;
** * * * * *** ** * ** *****
*** *** * * w,h;
* **** **** * * * ** * ***** ** ** *
*** * * *** * * *** ** ** * *
* ** * ** ****** * * *
* ***** * **** * * *** * * * * **
* ***** *** *** ** *** ***
***** * **** *** * * *** ** *** *
* * ** * *** * ** * ** ** * * * * ** *** * * * * ** * **** *** * endl;
* * * * * * * ** 0;

}
answered by (126 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 (-298 points)
0 like 0 dislike
Hidden content!
#include *** * ****

using namespace std;

class Shape

{

public:
* *** * ** * ** * ********* int setWidth(int n1){
* * * * *** ** ** * * *
** * * ** ** ** *
* * * * *** * * ** int setHeight(int n2){
* * * * ***** **** ** **** *
** * * ** * * **
** ***** *** * * ** * getWidth(){
**** ** ** **** width;
* * ** ** * * ***
**** ** * ***** * * getHeight(){
** * * ** * * * *** ** * height;
** * ** * **

protected:
** * ***** * ** width;
* ***** ** ** **** height;

};



class Rectangle: public Shape

{

public:
** ** **** *** ** getArea(){
* * * *** * *** * **** ** * ** *** * ***
***** * ** ** ***

};

class Triangle: public Shape

{

public:
** ** ** * * ** ** *** * getArea(){
** *** **** * * * *** * * ** * *** ** * * * *
*** * ** * * *

};

int main(void)

{
** * *** *** ** Rect;
** ** * * *** * * * **** **
** ** * * ** *** w,h;
******** *** * *** * * ** * **** * ***
** *** * * *** ******* * *
** * ** * * ** ** *
* * ** * ** * * ** ** * * ***
** * *** ** ** *** *
* * * *** ** * * * * * **
* **** ** ** * * * * * * ** * * * * *** * ** * * ** * * * * * ** **** endl;

** * * * *** * ***** ** ** 0;

}
answered by (-249 points)
0 like 0 dislike
Hidden content!
#include ******** *

using namespace std;

// Base class

class Shape

{

public:
** ** ** *** Your code: pure virtual function ** * * ***
* * * ***** ** * ** ** and * ** w) and ** * h) * here
* * * *** * * *** x);
** * * * * *** * * **** **** y);
* *** *
**** * * *** ** width;
* * ** *** * * *** height;

};

// Derived classes

class ** **** public Shape

{

public:
********* * ** *** Your code: * * * ** * * ** * ***
** * * * * * **
** * *** ** * ** ** ** * * * * *** * * *** ******
** * **** ** *

};

class Triangle: public Shape

{

public:
* ****** ** ** * Your code: * ** * ** *** * *
*** *** ** *** * ** ***
* ** ** * * ** **** *** ** *** ***** ** * ** * * **** **
*** * * * *** * **

};
***

int ** * ** x){
*** ****** ** *** * *** * = x;

}

int ** ** * * y){
****** ** * * ** ***** = y;

}



int **** *

{
** ** * * * * *** Rect;
* *** * ***** ** ** **
**** ** ****** *** * * w,h;
** * *** ** * * * * ** * * ***
*** * * ** ** * ** * ****
* ***** * ** **** ****
** **** * ** ** ** ***** * ** * ** ** *
* ** ** ********* ** * *
** *** * * *** **** *** ** *
*** ****** * * * *** ** ** ** * *** * * * ** ** * *** * * * ** * ** endl;

** ** * * ** ** 0;

}
answered by (-136 points)
0 like 0 dislike
Hidden content!
using std;

// Base class

class Shape

{

public:
* ** ***** * * Your code: pure virtual function * * ** * * * ** *
* ** * * ** ** * and *** * w) and * ** * h) functions here
** * *** ** *** * * ** x);
* * ** * *** y);
**** *
**** ******** * *** width;
*** ** * ** * *** * * height;

};

// Derived classes

class * *** public Shape

{

public:
*** * * * ***** * Your code: *** ** * * ** getArea()
** ** ** ***** * * * **
** * ***** * * * * * *** * * ** * *** ****
* **** ** *

};

class ** * * public Shape

{

public:
*** * ** ** ***** * Your code: * * * * * * * * * * *
** * * * ** *
* * *** * ***** * *** * *** ** * **** *** ***** * *** *
** * * * * ** *

};
* *

int * * **** x){
** ** ** ** * ***** * ***** * = x;

}

int *** **** * y){
* * * * ** * * * * * * * * = y;

}



int *

{
* * * * * *** ** *** Rect;
*** ** *** * * ** * **
* **** *** * w,h;
** * ** *** ** * ** * ** * *
* * ** *** * ******
* * ******* ** *** **** *
** **** **** ** *** *** **** ***** *
**** *** * * * * ** ** ** *** *
*** * ** ** * * * **
* * **** * ** * ** * * ** ** ** ** ** **** ** ** *** **** *** ** ** ** * endl;

* * ** ** *** 0;

}
answered by (-136 points)
0 like 0 dislike
Hidden content!
#include * *** * ***** * **

using **** std;

// Base class

class Shape

{

public:
* * ** ** ** * * ** * Your code: pure virtual function * * ** * *** *
* ** ****** ** ** * * and **** * w) and * * ** ** h) *** here
** ******** * * * * ** ** w){width = w;}
* * ** * ** *** **** * ** ** = h;}
***
* * * * * ** *** width;
** ** * * *** * * height;

};

// Derived classes

class * ** public Shape

{

public:
** * ** * * ** * Your code: * * * * *** * **
********* *** ** ** **** area;
** ** * * ** * ** **** * ** = * **
* * *** ** * ** * * * * * * * area;
*** * * ***

};

class *** public Shape

{

public:
* ** **** ** Your code: * ** *** * * **** ****
** ** * ** ** * ** * * * * *
* * * ** *** * * **** area;
* * * **** ***** * ** ** * = (width * * **
*** * ** * ** * ** *** * area;
****** * * * ** *

};

int ***

{
* ** * ** **** * ** Rect;
* ** *** ** * *** * ** ** *
* * ** **** ** ** w,h;
**** * *** * * * ** *** * *** ** * **
** **** ** * * ** *** ***
** * *** *** * ******* *
**** **** * * ***** * ** ***** ** * * * * *
** * ******* * * **
**** * * *** * ** ** * * ** * * ****
** *** * ** * * * * ** * ** **** ** * * * *** ** ** * ** *** * * endl;
**** **** ** * *** 0;

}
answered by (-189 points)
0 like 0 dislike
Hidden content!
#include *** * *****

using namespace std;

// Base class

class Shape

{

public:
* * ** * Your code: pure virtual function providing interface framework.




** * **** * * * * *
* ** * * * * * * * ** ** **** ** *
** * ** * *** ** * * ** *** *** * * *
******* * ** * ***
* * *** *** * * * * * * ** in){
* ** * ***** ** * ** ***** * ***** ** ****
* *** ** *** ** ** * * *
** **** * **** ** * **** in){
** *** *** * ** * ** ** * **** **** *
*** ** * * ** *** *
* * ** ** ** ** ** constructor and *** * w) and * **** * h) functions here
* * * *
** ** * width;
** * *** ** height;

};

// Derived classes

class Rectangle: public Shape

{

public:
*** * ***** ***** Your code: * * * * *** getArea()
** **** * ** ** ** * * * ****
* * * * * *** * * **** * * ** * *
** * * ** * *



};

class Triangle: public Shape

{

public:
* ******* **** Your code: * ** * ** * getArea()
* * * ** ****** * ** * **
* ** * * * * **** ** * * ***** * * ** * * * * ** *
***** * ******* ****



};

int main(void)

{
* **** * * * * * ** ** Rect;
* * * **** * ** * ** ** ** **
* * ** * * * * w,h;
* * * ******* * * * *** * **** ** ** * *
**** * ** * * **** * * **** *
** ***** *** **** ** *** * * *
* * **** * *** ** ******** * * * ** *
* **** * * * * *** * *
* * * *** * * *
* *** *** * * * * * * ** ** * *** *** * * ** **** * ** * *** * * * **** * * ** endl;
** ** *** ****** *** 0;

}
answered by (-368 points)
Welcome to Peer-Interaction Programming Learning System (PIPLS) LTLab, National DongHwa University
English 中文 Tiếng Việt
IP:172.69.214.181
©2016-2024

Related questions

0 like 0 dislike
15 answers
[Exercise] Coding (C) - asked Jun 1, 2017 in C++
ID: 24854 - Available when: Unlimited - Due to: Unlimited
| 526 views
0 like 0 dislike
27 answers
[Exercise] Coding (C) - asked Apr 27, 2017 in C++
ID: 24389 - Available when: Unlimited - Due to: Unlimited
| 890 views
0 like 0 dislike
1 answer
[Exercise] Coding (C) - asked Apr 27, 2017 in C++
ID: 24390 - Available when: Unlimited - Due to: Unlimited
| 210 views
12,783 questions
183,443 answers
172,219 comments
4,824 users