0 like 0 dislike
891 views

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

edited by | 891 views
0 0
Called for Help
0 0
Called for Help

27 Answers

0 like 0 dislike
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)
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 (-215 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 * 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)
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)
0 like 0 dislike
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)
0 like 0 dislike
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)
Welcome to Peer-Interaction Programming Learning System (PIPLS) LTLab, National DongHwa University
English 中文 Tiếng Việt
IP:172.69.7.13
©2016-2024

Related questions

0 like 0 dislike
30 answers
[Exercise] Coding (C) - asked May 18, 2017 in C++
ID: 24769 - Available when: Unlimited - Due to: Unlimited
| 825 views
0 like 0 dislike
17 answers
[Exercise] Coding (C) - asked Jun 1, 2017 in C++
ID: 24855 - Available when: Unlimited - Due to: Unlimited
| 616 views
0 like 0 dislike
20 answers
[Exercise] Coding (C) - asked Apr 27, 2017 in C++
ID: 24393 - Available when: Unlimited - Due to: Unlimited
| 730 views
12,783 questions
183,443 answers
172,219 comments
4,824 users