0 like 0 dislike
4.3k 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 | 4.3k 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:172.69.17.66
©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
| 4.1k views
0 like 0 dislike
17 answers
[Exercise] Coding (C) - asked Jun 1, 2017 in C++
ID: 24855 - Available when: Unlimited - Due to: Unlimited
| 2.8k views
0 like 0 dislike
20 answers
[Exercise] Coding (C) - asked Apr 27, 2017 in C++
ID: 24393 - Available when: Unlimited - Due to: Unlimited
| 3.3k views
12,783 questions
183,442 answers
172,219 comments
4,824 users