Output of Python programs | Set 7

Prerequisite -

Predict the output of the following Python programs. These question set will make you conversant with String Concepts in Python programming language.

• Program 1 Python

  var1 = 'Hello Geeks!'    
  var2 = "GeeksforGeeks"
  print "var1[0]: ", var1[0]        # statement 1
  print "var2[1:5]: ", var2[1:5]    # statement 2
  

  Output:

  var1[0]:  H
  var2[1:5]:  eeks
  

  Explanation: Strings are among the most popular types in Python. We can create a string by enclosing characters within quotes. Python treats single quotes same as double quotes. It is notable that unlike C or C++ python does not support a character type; in fact single characters are treated as strings of length one, thus also considered a substring. To access substrings, use the square brackets for slicing along with the index or indices to obtain your substring. Statement 1: will simply put character at 0 index on the output screen. Statement 2: will put the character starting from 0 index to index 4.
• Program 2 Python

  var1 = 'Geeks'
  print "Original String :-", var1
  print "Updated String :- ", var1[:5] + 'for' + 'Geeks' # statement 1
  

  Output:

  Original String :- Geeks
  Updated String :-  GeeksforGeeks
  

  Explanation: Python provides a flexible way to update string in your code. Use square brackets and specify the index from where string has to be updated and use + operator to append the string. [x:y] operator is called Range Slice and gives the characters from the given range. Statement 1: In the given code tells the interpreter that from 5th index of string present in var1 append 'for' and 'Geeks' to it.
• Program 3 Python

  para_str = """this is a long string that is made up of
  several lines and non-printable characters such as
  TAB ( \t ) and they will show up that way when displayed.
  NEWLINEs within the string, whether explicitly given like
  this within the brackets [ \n ], or just a NEWLINE within
  the variable assignment will also show up.
  """
  print para_str
  

  Output:

  this is a long string that is made up of
  several lines and non-printable characters such as
  TAB (      ) and they will show up that way when displayed.
  NEWLINEs within the string, whether explicitly given like
  this within the brackets [ 
   ], or just a NEWLINE within
  the variable assignment will also show up.
  

  Explanation: Python's triple quotes comes to the rescue by allowing strings to span multiple lines, including NEWLINEs, TABs, and any other special characters.The syntax for triple quotes consists of three consecutive single or double quotes.
• Program 4 Python

  print 'C:\\inside C directory' # statement1
  print r'C:\\inside C directory' # statement2
  

  Output:

  C:\inside C directory
  C:\\inside C directory
  

  Explanation: Raw strings do not treat the backslash as special characters at all. Statement 1 : will print the message while considering backslash as a special character. Statement 2 : is a raw string that will treat backslash as a normal character.
• Program 5 Python

  print '\x25\x26'
  

  Output:

  %&
  

  Explanation: In the above code \x is an escape sequence that means the following 2 digits are a hexadecimal number encoding a character. Hence the corresponding symbols will be on the output screen.