0 like 0 dislike
1.7k 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 | 1.7k 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:172.71.254.16
©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
| 1.8k views
0 like 0 dislike
17 answers
[Exercise] Coding (C) - asked Jun 1, 2017 in C++
ID: 24855 - Available when: Unlimited - Due to: Unlimited
| 1.2k views
0 like 0 dislike
20 answers
[Exercise] Coding (C) - asked Apr 27, 2017 in C++
ID: 24393 - Available when: Unlimited - Due to: Unlimited
| 1.4k views
12,783 questions
183,443 answers
172,219 comments
4,824 users