05-04 Lab exercise 3: Write class shape with width and height

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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
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27 Answers

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Hidden content!
** *** * ** *****

using namespace std;

class Rectangle{
* ** ** ** * * * * ** ****
* *** ** ****** * ** * ** * * * * * set_data(int n,int r);
* **** * ** ** ** * *** ** * * * * a;
*** *** ** * *** * ** **** *** * ** ** * * b;
* * ** ******** * * ** ** ** * * *** * * * * ** area();

};

void ** ** *** * ***** n,int r){
* * ** ** *** *** ****
*** * * * * * * *** * *

}

int *** **
* * * ** *** ** * *** ***** a*b;

}

class Triangle{
* *** ****** ** * * ****
*** ** *** * *** * ** * * * ** * * * ** *** area();
***** * *** * * * * **** * * ***** ** ***** ************ set_data(int s,int t);
* ***** ** * *** **** ******* * *** * * ** c;
* * *** * ** * * * ** *** ** * ** * *** d;

};

void * ** * **** s,int t){
* * * ** **** **** ** **
** * **** * * * ** ** ** ********

}

int * * ** * * *
* * ****** * * *** ** * * **** * * * c*d/2;

}

int main (){
* * * ** ** ** ** * * * ** rect;
* * ** * *** ******** tri;
* * * ** ** ** ** * ****** * (5,3);
* * * * ** ***** ** *** ** (2,5);
** * * * ** ** ******** * << rect.area() << ** * * * * *** * * tri.area() << endl;
* ** * *** ** * *** 0;

}
answered by (-384 points)
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Hidden content!
#include<iostream>



using namespace std;




* ** * *** * ** ** rect
**** **** ** *** * *****
* * ** * * ** *** *
** *** * ** * ** ** * * * a,b;
* * **** * * ** ** ** **** * ***** ** ** area();
* * ** * ** **** ** *
* * **** ******* *** *** tri
***** ** ** ** ** * * *
* ** ** ** ***** * * * ** ** *** ***** ** *
**** **** *** ** ******* * * ** * ** **** * a,b;
* * **** *** ** * *** * **** ** * ** *** area();
*** * * ** ** *
* **** * ** * * * * *** rect ::area()
*** *** ******* *** **
* * ** * * *** * *  a*b;
* **** * ***** * *****
*** **** * * ** * tri ::area(){
** *** ***** * * *  a*b/2;

}

int main ()

{
*** ** * * * * * ** ** * t;
** ** *** *** * * c;
** ** *** * * ** *** **
** *** * ** * ** * **
** *** *** * ** *** ** ** * **
** ** **** * *** * ****
***** * *** << t.area()<< ";" << c.area() << endl;
** * * * * * ***** * 0;

}
answered by (-249 points)
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Hidden content!
#include *** ** * *

using namespace std;



class Rectangle

{

private:
* *** * *** * **** ** wid,hei;

public:
** ** *** * * *** * * set_data(int a ,int b)
* * ****** **** * * * *
***** * * ** ** ** * * ** **** * ** ** * ** *
**** * *** ** ** ** * **** ** * * *** * * * ***
** * *** * * *
* * * * ** **** *** **** * * area(void)
* ******* * ** *
** ** * * * * * *** ** * *** ** * ** ** * wid*hei;
* *** ** ** ** ** * * *



};

class Triangle

{

private:
* * * * ** ** wid,hei;

public:
* * * *** * * * **** ** * * set_data(int a ,int b)
* ** * * ** *** * * * ** *
** * * * * *** * ** * * **** ** * ******** ****
* ** * *** * * ** ***** **** ** * * ** * * * *
* * *** * *** ** *
** ** * *** *** * * * area(void)
* * ** * * *******
** **** * ****** * * * * ** ***** * **** wid*hei/2;
** * * * *** * ******





};





int main()

{
* * **** ** * *** * * **** rect;
*** * * * * *** *** * ***** ** tri;
* *** * * ** ****** ** *** * (5,3);
* **** ****** * * ******* ** * ** (2,5);
*** * **** ** * * * ** << rect.area() * * ** * ** * ** * * *** ** tri.area() << endl;
** * ***** ** ** ** * *** *** 0;

}
answered by (0 points)
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Hidden content!
#include * * **** **



using namespace std;



class shape

{
* ** ** ** *** **
* * ** ** * ** *** ** * set_data (int x, int y)
*** ** **** ***** ***
** ****** * ***** * *** * * **** ** *** = x;
** *** * ** * **** ** **** ** * * *** *** ***** ** = y;
*** * * * ** ** ** *
* **** * * ***** **** width, height;



};



class Rectangle : public shape

{
*** * **** * ***** ***** * ***
* * ** ** * *** area ()
* **** ***** * * ** * * ** * ***** *
* * * ** * ** * * * ******* ***** *** * **** * ** * ** * * * ** * a;
** *** ** * *** *** * ***** ** ** *** ****** ***** * * ** ** * * = width * height;
* * ** ******** * * ***** *** * ******** * ******* *** * * * ** * a;
* *** * * * * **** * **** * * * * *



};



class Triangle : public shape

{
* ** ** ** ** * ** * * * * *
* * * ** * * ******** area()
* ** * *** *** **
* *** ******* ** ** *** * * * ** * ** * ** a;
* ** *** * ** ** * **** * * * * ** ** = .5 *width *height;
* * * ** *** ** ** * * **** * a;
** ** ** ** *** ****

};

int main (){


* * ***** ** ** * ** * * rect;
** * ***** **** * * * * * tri;
* **** * *** ***** *** ***** (5,3);
** ** * *** *** ** ** (2,5);
* ** * ***** **** * ** << rect.area() << * ** * * << tri.area() << endl;


* ** * * *** * * **** * * **** 0;

}
answered by (5.9k points)
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Hidden content!
#include<iostream>

using namespace std;



class Rectangle{
* ** **** **** * ** ** * width_value,height_value;
** * **** * * * * ** ** ** **
** *** ******** * * ** * * ** * * * * ** * * v1,int v2){
** * * *** * * * * * ** ***** ** ******** ** * * *** ***** * **
* * * * * **** **** **** ** ****** * ** * * ** *    
** * ** ** * ** * * *** ** ** * * *** ** * * *
* ** ** ** * * ** ** * * * * * * * **** area(){
********* ********* * * * * * **** * * ** * * ** * ** ** * * * * * (width_value*height_value);
* *** * * * ** *** * ** * * * * ** ** * * * *
*** ** * *** * ***

};



class Triangle{
** *** * ****
** ** *** *** * * * ** ** ****** * * ** * width_value,height_value;
******* * * * ** ***** *
**** * ** ** *** * * * * ** **** **** * ** **** v1,int v2){
* **** * * * * ** * ***** ** ** * * * ** *** *** * * ** ** * *
** *** ** * * ** ** *** *** * * *** ** * * * ** * * *** * *** *******    
**** * ** ** ***** **** ** * ****** ** * * * *
***** ** ** * ** ** ** ** ** ** ** ** * area(){
** * * * * * * ** * **** ** * * * * * ** **** * (width_value*height_value)/2;
** * * * * *** * * * *** * ** *

};



int main (){


* ** * * * * ** ** ** * ** * * rect;
* * ** * ** * * * * ** tri;
* * * * * ** * ** * * (5,3);
**** * * **** * *** *** (2,5);
** * * ** * * << rect.area() << ";" << tri.area() << endl;
*** *** ** * * * * * * 0;

}
answered by (-412 points)
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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 (5.2k points)
0 like 0 dislike
Hidden content!
#include * ** * * ** *

using namespace std;

class Rectangle

{

public:
** * * ****** ** **** * * i,j;
*** * ** ** **** ** ** * * set_data(int a,int b)
* * *** ***** *** **
* *** * * * * ** ** ***** **** * * ***** **** ** *
****** * **** ** * **** *** * **** ** * **** * * *
***** * ** * *
******* * * ****** *** area()
** *** ** * * *
*** **** * * ** * * *** *** * * * * * * * i*j;
* * * ** * * * * ** **

};

class Triangle

{

public:
* *** * * * * * * i,j;
* * **** * *** * * * * set_data(int a,int b)
* * * ** ***** * **
* * ****** * **** ***** *** * * **** ** * * *** *** * *
** * * * * * * ** ** * * * ** * * *
** * ** ** *** * ***
** * *** ** ** * ** area()
* *** * * ** *** *
* * ** * * ** ** * * * ***** **** ***** * * i*j/2;
*** ** * * * * * *

};



int main()

{


* ** ** ** * * *** * **** ** rect;
** ** *** * * ***** ***** ** tri;
** * * * ** **** * ***** (5,3);
* * * * ** * * * * * * * (2,5);
** ***** * ** ***** ** *** << rect.area() << ** *** * << tri.area() << endl;
** * ***** ********* ****** * * 0;

}
answered by (0 points)
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