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//Hello World:
#include <iostream.h> //This is the header file, which tells the compiler what to include
using namespace std;

int main() //This is the start of the program(like Public Form1(); in C#)
{
    cout<< "Hello world!" <<endl; //outputs the text
    system("PAUSE"); //Tell's the program to paus
    return(0); //Ends the programs code
}

//Hello World:
#include <iostream.h> //This is the header file, which tells the compiler what to include
using namespace std;

int main() //This is the start of the program(like Public Form1(); in C#)
{
    int num = 0; //This is an declared integer. It is important to  keep the number at 0,
    //as  we ask the user to change it later in the program.
    cout << "Please input a number:\n";
    cin >> num; //This line is our input, where the user enters a number. Notice how the
    //arrows are pointing right not left, as the output would.
    cout << "The number is";
    cout << num;
    cout << "\n";
    system("PAUSE");
    return 0;
}

//Hello World:
#include <iostream.h> //This is the header file, which tells the compiler what to include
using namespace std;

int main() //This is the start of the program(like Public Form1(); in C#)
{
    double dnum = 0.0; //This has the same principals as the integer BUT
    //it only deals with decimals where as integers deal with whole numbers.
    //Note: Always remember to put the letter 'd' before your declared double code.
    //For example:
          //dnum
    //This is so that in your code when you use that double it knows exactly that 
    //this is a double. 
    cout << "Please enter a decimal number:\n";
    cin >> dnum;
    cout << "The number is";
    cout << dnum;
    cout << "\n";
    system("PAUSE");
    return 0;
}

//Hello World:
#include <iostream.h> //This is the header file, which tells the compiler what to include
using namespace std;

int main() //This is the start of the program(like Public Form1(); in C#)
{
    int num = 96;
    if(num == 96){
           cout << "Hello\n";
           }
    else{
         cout <<"World";
         }
    system("PAUSE");
    return 0;
}

if (true){
     //Execute these statements if TRUE
}
else{
     //Execute these statements if FALSE     
}