0 like 0 dislike

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
| 328 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:35.172.217.174
©2016-2021

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
| 324 views
0 like 0 dislike
27 answers
[Exercise] Coding (C) - asked Apr 27, 2017 in C++
ID: 24389 - Available when: Unlimited - Due to: Unlimited
| 548 views
0 like 0 dislike
1 answer
[Exercise] Coding (C) - asked Apr 27, 2017 in C++
ID: 24390 - Available when: Unlimited - Due to: Unlimited
| 134 views
12,268 questions
164,383 answers
162,601 comments
4,640 users