Program Input Using cin

• >> is a binary infix operator that needs the source of the extraction (the stream) on the left side and the destination (a variable) on the right
  
  
• White space (space, tab, newline) determines where one input ends and another starts (for numeric input)
  
  
• White space at the beginning (leading white space) is ignored
  
  
• The data entered must be the same type as the destination variable
  
  
• A reader marker (bookmark) keeps track of which character is next to be read (scanned)
  
  
• Pressing the return key (enter key) causes a newline to be put into the stream (white space) and also signals cin to start reading (scanning) the input