Basics of Input

• There are may problems that can arise with input, and we will deal with most of them later. This is just to get started.
• Just like output is performed to the standard output stream cout
• input is performed from the standard input stream cin
• the operator >> is the stream extraction operator or get from

           string aWord;
  
  	 cin >> aWord;
      

• This will skip whitespace until non-whitespace is encountered.
• It will then read nonwhitespace characters into aWord until another whitespace is encountered.
• Input to a character is even simpler

          char aChar;
  
  	cin >> aChar;
      

• Will store the first non-whitespace character in aChar.

• It is always best to prompt (or ask) the user before performing input
  • You should tell them you are going to do input
  • You should tall them what you want.
• In fact, programs that don't prompt for imput are docked for points.
• It is also a good idea to echo back what was just entered.
  • This lets the user know they typed in the right thing.
  • For a while, it helps you understand what the io is doing.
• In Fact, if you don't echo back the results of input, you will be docked points.

          string firstName;
  
  	cout << "Enter your First Name : " ;
  	cin >> firstName;
  	cout << endl;
  	cout << "You Entered your First Name as " << firstName << endl;