0 like 0 dislike
846 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 | 846 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:172.69.6.75
©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
| 755 views
0 like 0 dislike
17 answers
[Exercise] Coding (C) - asked Jun 1, 2017 in C++
ID: 24855 - Available when: Unlimited - Due to: Unlimited
| 576 views
0 like 0 dislike
20 answers
[Exercise] Coding (C) - asked Apr 27, 2017 in C++
ID: 24393 - Available when: Unlimited - Due to: Unlimited
| 706 views
12,783 questions
183,443 answers
172,219 comments
4,824 users