0 like 0 dislike
5.8k 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 | 5.8k 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:104.23.197.65
©2016-2026

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
| 5.7k views
0 like 0 dislike
17 answers
[Exercise] Coding (C) - asked Jun 1, 2017 in C++
ID: 24855 - Available when: Unlimited - Due to: Unlimited
| 3.8k views
0 like 0 dislike
20 answers
[Exercise] Coding (C) - asked Apr 27, 2017 in C++
ID: 24393 - Available when: Unlimited - Due to: Unlimited
| 4.4k views
12,783 questions
183,442 answers
172,219 comments
4,824 users