cool j

how do i determine if a shape was 2 dimensional or 3 dimensional

Fork , exec , system , wait , kill , $g++,$gcc , need a brief example on each one plz if possible !!

i do not understand the use of composition or how to use it honestly i read the text book but things are still vague for me now here's the code i wrote for the home work i have 10 errors :(( :

#include<iostream>

using namespace std;

class Point

{

private :

int x,y;

public:

void set_x(int a)

{

x=a;

}

void set_y(int b)

{

y=b;

}

int get_x()

{

return x;

}

int get_y()

{

return y;

}

};

class Rectangle

{

private :

int length , width ; Point point1;Point point2;

public :

void set_point(Point& x,Point & y):point1(x),point2(y); //x=length , y=width;

{}

int move_point(int a,int b)

{

length =x+a;width=y+b;

return length*width;

}

};

void main()

{ int a,b;cin>>a>>b;

Rectangle r1;

r1.set_point(a,b);

cout<<r1.move_point(a,b)<<endl;

}

i been asked for a homework about composition and i actually don't get the idea !! could some one plz explain it ??

i was given this assignment for object oriented ,,,,

Write a complete program that declares the class Person in a header file, and implements it in a source file.

Your class should contain the following attributes:

o Name

o Social security number

o Age

o Gender

o Height.

Your class should have two constructors:

o A default constructor that initializes all data members to some predefined values

o A parameterized constructor that receives values for all data members to initialize them.

Your class should have set and get functions for all data members.

Your class should have a printData function to print all attributes values.

You should test your code by writing a main function that instantiates some objects of type Person and then use the member functions implemented previously.

Question is how do i " Write a complete program that declares the class Person in a header file, and implements it in a source file" ??

i did write the code had no probs but still dunno how to do it in a header file or so ^^^

include <iostream.h>

#include<string>

using std:: string ;

class student

{

student()

{

Number=2007;

Name="Jill" ;

Average =70;

}

student(int n , string na , double avg )

{

Number = n;

Name = na;

Average=avg;

}

void st_no(int n)

{

if(n<=2005)

cout<<"Graduate"<<endl;

}

void printinformation()

{

cout<<"Number : " <<Number<<" " << "Name : " << Name<<" " << " Average : "<< Average << endl;

}

private :

int Number ; string Name; double Average;

};

void main ()

{ student o1;o1.student();

student o1(2003,"Saleem",75);

o1.printinformation();

o1.st_no(2003);

}

my monitor view is upside down , no idea how that happened , any one know how to fix it ?

in short , i have a linear-algebra exam and for some reason i cant get it done though its easy , im studying or trying to study the text book ,i read and its easy but when it comes to solve a prob i cant do nothing !! so if someone can explain it in short way i can get plz do and ty !! is about gauss elemination , gauss-jordan elemination ,solving systems using those ways !!

i have a problem with my keyboard ,,,whenever i try to play any game whatever it is it stops working like i have no keyboard i can use the mouse but not the keyboard ,,i changed the keyboard but didn't work checked the control options for the game and also didn't woprk so anyone have an idea how can i solve this ???

i have to parties videos on a cd 'n i want them seperated so i need a software to use to cut the vid in 2 !!