0 like 0 dislike
868 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 | 868 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:172.69.6.99
©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
| 776 views
0 like 0 dislike
17 answers
[Exercise] Coding (C) - asked Jun 1, 2017 in C++
ID: 24855 - Available when: Unlimited - Due to: Unlimited
| 588 views
0 like 0 dislike
20 answers
[Exercise] Coding (C) - asked Apr 27, 2017 in C++
ID: 24393 - Available when: Unlimited - Due to: Unlimited
| 714 views
12,783 questions
183,443 answers
172,219 comments
4,824 users