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Answer Posted / subhashish sen
static keyword is used with both variables and
functions.when a static variables means it retains its value
for different function calls and in C++ this variable is
used mainly for counting no. of objects of a class and it is
not confined to a particular object and for static member
functions its can only manipulate static variables and a
static member function can be invoked without an object of
class.
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This program numbers the lines found in a text file. Write a program that reads text from a file and outputs each line preceded by a line number. Print the line number right-adjusted in a field of 3 spaces. Follow the line number with a colon, then one space, then the text of the line. You should get a character at a time and write code to ignore leading blanks on each line. You may assume that the lines are short enough to fit within a line on the screen. Otherwise, allow default printer or screen output behavior if the line is too long (i.e., wrap or truncate). A somewhat harder version determines the number of spaces needed in the field for the line numbers by counting lines before processing the lines of the file. This version of the program should insert a new line after the last complete word that will fit within a 72-character line.
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