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The C++ language is an extension of C and thus carries the legacy of the C language. One of the  legacies  is  the  arrays.  The  array  is  a  simple  structure  containing  a  collection  of homogeneous  items together  as  a single  unit. A  great  feature  of the  arrays  is the  ability  of the  programmer  to  manipulate  the  complete  collection  using  the  index  value  and  some looping structure.  Another  important  legacy  of C  is the  string. The  string in  C  is an  array of characters  terminated by a typical sentinel value called null (‘\n’). The C string library contains  many  functions  for  dealing  with  C  type  strings,  for  example,  copy  one  string  into another,  comparing  two  strings  with  each  other,  finding  out  if  there  is  a  typical  substring which  is part of a  given string etc. The  arrays  are  part of the  C++  design  and  they are  used like  they  are  in  C.  However,  the  C type  strings are  not preferred  in  C++  as  a  better form  of string  is  provided  by  the  C++  designers.  The  C++  string  is  basically an  object  of  the  class (which  is  also  known  as  a  string  class)  available  to  C++  programmers.  C++  contains  a  new library called standard template library or STL which contains many other classes apart from the string. The string is one of the most popular classes of the STL. The string class has many advantages  as  compared  to  the  C  type  string.  We  will  throw  some  light  on  how  the  string objects  are  better  than  C  type  strings  in  this  module.  We  will  also  explore  two  important things  in  this  module.  We  will  see how  arrays  are  extended  in  C++  to have  objects  as  their elements.  We  will  also  learn  about  how  the  C++  string  objects  are  used  and  how  one  can program using the C++ string objects and their member functions.
Before  we  embark  on  the  discussion  of  string  objects,  let  us  be  clear  that  the  C  language array structure and strings are assumed to be known. If you have no idea about C arrays and strings,  it  is  strongly  recommended  that  you  study  them before  attempting  to  learn  the content of this module.

Course Curriculum

Arrays and Strings 00:32:00

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