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)
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 (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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