0 like 0 dislike
1k 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 | 1k 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:172.69.58.119
©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
| 938 views
0 like 0 dislike
17 answers
[Exercise] Coding (C) - asked Jun 1, 2017 in C++
ID: 24855 - Available when: Unlimited - Due to: Unlimited
| 677 views
0 like 0 dislike
20 answers
[Exercise] Coding (C) - asked Apr 27, 2017 in C++
ID: 24393 - Available when: Unlimited - Due to: Unlimited
| 854 views
12,783 questions
183,443 answers
172,219 comments
4,824 users