Chapter 12, Problem 5SA

Program Plan Intro

Inserting or deleting characters in a string:

• Library function or modules are provided by the programming languages to perform insert and deletion operations.

Inserting:

The pseudocode library modules that are used to insert the values is :

insert (string1,position,string2)

• The above function will insert the “string 2” to the “string1” at the “position” specified.
• “string1” and “string2” is string
• “Position” is an integer.

Deleting:

The pseudocode library modules that are used to insert the values is

delete (string1,start,end)

• The above function will delete the strings that are specified from the start to the end.
• “Start” and “End” is integer that specifies the beginning position and end position.
• “String” is string.

Example:

The below statement is used to delete the first three characters from the string “city”.

//deletes first three character in city

delete (city, 0, 2)

Explanation:

• The above function will delete the strings present in the “city” variable that is specified from the position “0” to the position “2”.
• The above function will delete the first three character of the “city” string.
• On execution, the “city” will hold “ton” as its value.