0 like 0 dislike
4k 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 | 4k 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:108.162.241.32
©2016-2025

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
| 3.8k views
0 like 0 dislike
17 answers
[Exercise] Coding (C) - asked Jun 1, 2017 in C++
ID: 24855 - Available when: Unlimited - Due to: Unlimited
| 2.6k views
0 like 0 dislike
20 answers
[Exercise] Coding (C) - asked Apr 27, 2017 in C++
ID: 24393 - Available when: Unlimited - Due to: Unlimited
| 3.1k views
12,783 questions
183,442 answers
172,219 comments
4,824 users