getting-started-strings/questions.rst
author bhanu
Mon, 15 Nov 2010 15:00:34 +0530
changeset 503 a858141ad884
parent 313 b9b7bfce773e
permissions -rw-r--r--
Language check done for `I/O`
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
313
b9b7bfce773e Getting started with strings LO - script and questions.
Puneeth Chaganti <punchagan@fossee.in>
parents:
diff changeset
     1
Objective Questions
b9b7bfce773e Getting started with strings LO - script and questions.
Puneeth Chaganti <punchagan@fossee.in>
parents:
diff changeset
     2
-------------------
b9b7bfce773e Getting started with strings LO - script and questions.
Puneeth Chaganti <punchagan@fossee.in>
parents:
diff changeset
     3
b9b7bfce773e Getting started with strings LO - script and questions.
Puneeth Chaganti <punchagan@fossee.in>
parents:
diff changeset
     4
.. A mininum of 8 questions here (along with answers)
b9b7bfce773e Getting started with strings LO - script and questions.
Puneeth Chaganti <punchagan@fossee.in>
parents:
diff changeset
     5
b9b7bfce773e Getting started with strings LO - script and questions.
Puneeth Chaganti <punchagan@fossee.in>
parents:
diff changeset
     6
1. List the type of quotes that can be used to define strings. 
b9b7bfce773e Getting started with strings LO - script and questions.
Puneeth Chaganti <punchagan@fossee.in>
parents:
diff changeset
     7
 
b9b7bfce773e Getting started with strings LO - script and questions.
Puneeth Chaganti <punchagan@fossee.in>
parents:
diff changeset
     8
   Answer: 'single quotes', "double quotes", 
b9b7bfce773e Getting started with strings LO - script and questions.
Puneeth Chaganti <punchagan@fossee.in>
parents:
diff changeset
     9
           '''triple single quotes'''
b9b7bfce773e Getting started with strings LO - script and questions.
Puneeth Chaganti <punchagan@fossee.in>
parents:
diff changeset
    10
           """triple double quotes"""
b9b7bfce773e Getting started with strings LO - script and questions.
Puneeth Chaganti <punchagan@fossee.in>
parents:
diff changeset
    11
   
b9b7bfce773e Getting started with strings LO - script and questions.
Puneeth Chaganti <punchagan@fossee.in>
parents:
diff changeset
    12
#. Given the strings ``s`` and ``S``, ``s='Hello World'`` and
b9b7bfce773e Getting started with strings LO - script and questions.
Puneeth Chaganti <punchagan@fossee.in>
parents:
diff changeset
    13
   ``S="Hello World``. s and S are different strings. True or False?
b9b7bfce773e Getting started with strings LO - script and questions.
Puneeth Chaganti <punchagan@fossee.in>
parents:
diff changeset
    14
b9b7bfce773e Getting started with strings LO - script and questions.
Puneeth Chaganti <punchagan@fossee.in>
parents:
diff changeset
    15
#. What is the output of::
b9b7bfce773e Getting started with strings LO - script and questions.
Puneeth Chaganti <punchagan@fossee.in>
parents:
diff changeset
    16
   
b9b7bfce773e Getting started with strings LO - script and questions.
Puneeth Chaganti <punchagan@fossee.in>
parents:
diff changeset
    17
     s = 'It's all here'
b9b7bfce773e Getting started with strings LO - script and questions.
Puneeth Chaganti <punchagan@fossee.in>
parents:
diff changeset
    18
b9b7bfce773e Getting started with strings LO - script and questions.
Puneeth Chaganti <punchagan@fossee.in>
parents:
diff changeset
    19
   Answer: ``SyntaxError``
b9b7bfce773e Getting started with strings LO - script and questions.
Puneeth Chaganti <punchagan@fossee.in>
parents:
diff changeset
    20
b9b7bfce773e Getting started with strings LO - script and questions.
Puneeth Chaganti <punchagan@fossee.in>
parents:
diff changeset
    21
#. Write code to assign s, the string ``' is called the apostrophe``
b9b7bfce773e Getting started with strings LO - script and questions.
Puneeth Chaganti <punchagan@fossee.in>
parents:
diff changeset
    22
b9b7bfce773e Getting started with strings LO - script and questions.
Puneeth Chaganti <punchagan@fossee.in>
parents:
diff changeset
    23
   Answer: ``s = "`is called the apostrophe"``
b9b7bfce773e Getting started with strings LO - script and questions.
Puneeth Chaganti <punchagan@fossee.in>
parents:
diff changeset
    24
b9b7bfce773e Getting started with strings LO - script and questions.
Puneeth Chaganti <punchagan@fossee.in>
parents:
diff changeset
    25
#. Given strings s and t, ``s = "Hello"`` and ``t = "World"``. What is
b9b7bfce773e Getting started with strings LO - script and questions.
Puneeth Chaganti <punchagan@fossee.in>
parents:
diff changeset
    26
   the output of s + t?
b9b7bfce773e Getting started with strings LO - script and questions.
Puneeth Chaganti <punchagan@fossee.in>
parents:
diff changeset
    27
b9b7bfce773e Getting started with strings LO - script and questions.
Puneeth Chaganti <punchagan@fossee.in>
parents:
diff changeset
    28
   Answer: HelloWorld
b9b7bfce773e Getting started with strings LO - script and questions.
Puneeth Chaganti <punchagan@fossee.in>
parents:
diff changeset
    29
b9b7bfce773e Getting started with strings LO - script and questions.
Puneeth Chaganti <punchagan@fossee.in>
parents:
diff changeset
    30
#. Given strings s and t, ``s = "Hello"`` and ``t = "World"`` and an
b9b7bfce773e Getting started with strings LO - script and questions.
Puneeth Chaganti <punchagan@fossee.in>
parents:
diff changeset
    31
   integer r, ``r = 2``. What is the output of s * r + s * t?
b9b7bfce773e Getting started with strings LO - script and questions.
Puneeth Chaganti <punchagan@fossee.in>
parents:
diff changeset
    32
b9b7bfce773e Getting started with strings LO - script and questions.
Puneeth Chaganti <punchagan@fossee.in>
parents:
diff changeset
    33
   Answer: HelloHelloWorldWorld
b9b7bfce773e Getting started with strings LO - script and questions.
Puneeth Chaganti <punchagan@fossee.in>
parents:
diff changeset
    34
b9b7bfce773e Getting started with strings LO - script and questions.
Puneeth Chaganti <punchagan@fossee.in>
parents:
diff changeset
    35
#. Given strings s and t, ``s = "Hello"`` and ``t = "World"`` and an
b9b7bfce773e Getting started with strings LO - script and questions.
Puneeth Chaganti <punchagan@fossee.in>
parents:
diff changeset
    36
   integer r, ``r = 2``. What is the output of s * 'r' ? 
b9b7bfce773e Getting started with strings LO - script and questions.
Puneeth Chaganti <punchagan@fossee.in>
parents:
diff changeset
    37
b9b7bfce773e Getting started with strings LO - script and questions.
Puneeth Chaganti <punchagan@fossee.in>
parents:
diff changeset
    38
   Answer: TypeError - can't multiply a sequence by non-int
b9b7bfce773e Getting started with strings LO - script and questions.
Puneeth Chaganti <punchagan@fossee.in>
parents:
diff changeset
    39
b9b7bfce773e Getting started with strings LO - script and questions.
Puneeth Chaganti <punchagan@fossee.in>
parents:
diff changeset
    40
#. Given the string ``s = "Hello"``, we wish to change it to
b9b7bfce773e Getting started with strings LO - script and questions.
Puneeth Chaganti <punchagan@fossee.in>
parents:
diff changeset
    41
   ``hello``. what is the result of::
b9b7bfce773e Getting started with strings LO - script and questions.
Puneeth Chaganti <punchagan@fossee.in>
parents:
diff changeset
    42
   
b9b7bfce773e Getting started with strings LO - script and questions.
Puneeth Chaganti <punchagan@fossee.in>
parents:
diff changeset
    43
     s[0] = 'h'
b9b7bfce773e Getting started with strings LO - script and questions.
Puneeth Chaganti <punchagan@fossee.in>
parents:
diff changeset
    44
b9b7bfce773e Getting started with strings LO - script and questions.
Puneeth Chaganti <punchagan@fossee.in>
parents:
diff changeset
    45
   Answer: TypeError - 'str' object does not support item assignment. 
b9b7bfce773e Getting started with strings LO - script and questions.
Puneeth Chaganti <punchagan@fossee.in>
parents:
diff changeset
    46
b9b7bfce773e Getting started with strings LO - script and questions.
Puneeth Chaganti <punchagan@fossee.in>
parents:
diff changeset
    47
#. Given the string ``s = "Hello"``, we wish to change it to
b9b7bfce773e Getting started with strings LO - script and questions.
Puneeth Chaganti <punchagan@fossee.in>
parents:
diff changeset
    48
   ``hello``. what is the result of::
b9b7bfce773e Getting started with strings LO - script and questions.
Puneeth Chaganti <punchagan@fossee.in>
parents:
diff changeset
    49
   
b9b7bfce773e Getting started with strings LO - script and questions.
Puneeth Chaganti <punchagan@fossee.in>
parents:
diff changeset
    50
     s = "hello"
b9b7bfce773e Getting started with strings LO - script and questions.
Puneeth Chaganti <punchagan@fossee.in>
parents:
diff changeset
    51
b9b7bfce773e Getting started with strings LO - script and questions.
Puneeth Chaganti <punchagan@fossee.in>
parents:
diff changeset
    52
   Answer: s is changed to "hello"
b9b7bfce773e Getting started with strings LO - script and questions.
Puneeth Chaganti <punchagan@fossee.in>
parents:
diff changeset
    53
b9b7bfce773e Getting started with strings LO - script and questions.
Puneeth Chaganti <punchagan@fossee.in>
parents:
diff changeset
    54
#. Which type of string can be written in multiple lines, with line
b9b7bfce773e Getting started with strings LO - script and questions.
Puneeth Chaganti <punchagan@fossee.in>
parents:
diff changeset
    55
   breaks. (Note: more than one answer may be correct.)
b9b7bfce773e Getting started with strings LO - script and questions.
Puneeth Chaganti <punchagan@fossee.in>
parents:
diff changeset
    56
b9b7bfce773e Getting started with strings LO - script and questions.
Puneeth Chaganti <punchagan@fossee.in>
parents:
diff changeset
    57
   #. triple double quoted strings
b9b7bfce773e Getting started with strings LO - script and questions.
Puneeth Chaganti <punchagan@fossee.in>
parents:
diff changeset
    58
   #. single quoted strings
b9b7bfce773e Getting started with strings LO - script and questions.
Puneeth Chaganti <punchagan@fossee.in>
parents:
diff changeset
    59
   #. double quoted strings
b9b7bfce773e Getting started with strings LO - script and questions.
Puneeth Chaganti <punchagan@fossee.in>
parents:
diff changeset
    60
   #. triple single quoted strings
b9b7bfce773e Getting started with strings LO - script and questions.
Puneeth Chaganti <punchagan@fossee.in>
parents:
diff changeset
    61
b9b7bfce773e Getting started with strings LO - script and questions.
Puneeth Chaganti <punchagan@fossee.in>
parents:
diff changeset
    62
   Answer: triple double quoted strings and triple single quoted strings
b9b7bfce773e Getting started with strings LO - script and questions.
Puneeth Chaganti <punchagan@fossee.in>
parents:
diff changeset
    63
b9b7bfce773e Getting started with strings LO - script and questions.
Puneeth Chaganti <punchagan@fossee.in>
parents:
diff changeset
    64
Larger Questions
b9b7bfce773e Getting started with strings LO - script and questions.
Puneeth Chaganti <punchagan@fossee.in>
parents:
diff changeset
    65
----------------
b9b7bfce773e Getting started with strings LO - script and questions.
Puneeth Chaganti <punchagan@fossee.in>
parents:
diff changeset
    66
b9b7bfce773e Getting started with strings LO - script and questions.
Puneeth Chaganti <punchagan@fossee.in>
parents:
diff changeset
    67
.. A minimum of 2 questions here (along with answers)
b9b7bfce773e Getting started with strings LO - script and questions.
Puneeth Chaganti <punchagan@fossee.in>
parents:
diff changeset
    68
b9b7bfce773e Getting started with strings LO - script and questions.
Puneeth Chaganti <punchagan@fossee.in>
parents:
diff changeset
    69
1. Given the string s, ``s = F.R.I.E.N.D.S``, obtain the string
b9b7bfce773e Getting started with strings LO - script and questions.
Puneeth Chaganti <punchagan@fossee.in>
parents:
diff changeset
    70
   "FRIENDS". 
b9b7bfce773e Getting started with strings LO - script and questions.
Puneeth Chaganti <punchagan@fossee.in>
parents:
diff changeset
    71
b9b7bfce773e Getting started with strings LO - script and questions.
Puneeth Chaganti <punchagan@fossee.in>
parents:
diff changeset
    72
   Answer::
b9b7bfce773e Getting started with strings LO - script and questions.
Puneeth Chaganti <punchagan@fossee.in>
parents:
diff changeset
    73
   
b9b7bfce773e Getting started with strings LO - script and questions.
Puneeth Chaganti <punchagan@fossee.in>
parents:
diff changeset
    74
     s = s[0] + s[2] + s[4] + s[6] + s[8] + s[10] + s[12] 
b9b7bfce773e Getting started with strings LO - script and questions.
Puneeth Chaganti <punchagan@fossee.in>
parents:
diff changeset
    75
b9b7bfce773e Getting started with strings LO - script and questions.
Puneeth Chaganti <punchagan@fossee.in>
parents:
diff changeset
    76
2. Assign the string ``Today's Quote: "Don't believe in any quote,
b9b7bfce773e Getting started with strings LO - script and questions.
Puneeth Chaganti <punchagan@fossee.in>
parents:
diff changeset
    77
   including this."`` to the variable ``quote``. 
b9b7bfce773e Getting started with strings LO - script and questions.
Puneeth Chaganti <punchagan@fossee.in>
parents:
diff changeset
    78
b9b7bfce773e Getting started with strings LO - script and questions.
Puneeth Chaganti <punchagan@fossee.in>
parents:
diff changeset
    79
   Answer: 
b9b7bfce773e Getting started with strings LO - script and questions.
Puneeth Chaganti <punchagan@fossee.in>
parents:
diff changeset
    80
   quote = """Today's Quote: "Don't believe in any quote, including this."""