Answer:
\n
Explanation:
readline() method is used to read one line from a file. It returns that line from the file.
This line from the file is returned as a string. This string contains a \n at the end which is called a new line character.
So the readline method reads text until an end of line symbol is encountered, and this end of line character is represented by \n.
For example if the file "abc.txt" contains the lines:
Welcome to abc file.
This file is for demonstrating how read line works.
Consider the following code:
f = open("abc.txt", "r") #opens the file in read mode
print(f.readline()) # read one line from file and displays it
The output is:
Welcome to abc file.
The readline() method reads one line and the print method displays that line.
Answer:
False
Explanation:
namespaces can be nested. That is we can have a hierarchy of namespaces.
For examples suppose we have a namespace top. Within this we have another namespace first. At the next level we have a namespace called second. Then we have a class MyClass as a member of this namespace second. Then the complete description of the class will be as follows:
top::first::second::MyClass
Answer:
zcat
Explanation:
Zcat is a command line utility for viewing the contents of a compressed file without literally uncompressing it. It expands a compressed file to standard output allowing you to have a look at its contents. In addition, zcat is identical to running gunzip -c command.
Answer:
4) 3 11 44
Explanation:
Given data
int [] val = { 3, 10, 44 };
The total number of parameters of given array are 3, so total length of array is also 3.
The indexing of array starts with '0', Therefore the indexes of array with length zero are: {0,1,2}
The value of array at index 0 is = 3
similarly,
value at index 1 = 10
value at index 2 = 44
Here, Int i = 1 is storing the value '1' in integer variable i.
In addition to that, any value of index 'i' of an array is selected using array[i].
Therefore,
val[i] is selecting the value of array located at index '1' because i = 1.
val[i] = val[1] = 10
val[i]+1 is selecting the value of array located at index 'i' that is (1) and adding 1 to it
=> val[i] = 10
=> val[i]+1 = 10+1 = 11
Finally,
val[i] = val[i]+1; is copying the val[i]+1 = 11 to value placed at index 1 (10). Hence, the output would be {3 11 44}. So 4th option is correct.
Answer:
E-publishing is also known as digital publishing or online publishing.It means to publish the content in electronic form.It is growing rapidly.It consist digital publication of e-books,digital magazines that can be read on a screen.
<u>Explanation:</u>E-publishing is very convenient.We do not have to keep large number of books on the shelves.E-books are best during travelling because we need not to carry heavy luggage of books.E-books are cheaper than paperbacks.
E-publishing can allow the authors to reach large number of readers.Electronic contents are very well updated.Electronic books are environment friendly.It saves wastage of papers and hence cutting of trees.
Besides above advantages there are some disadvantages of E-publishing:
There are more responsibilities in E-publishing.Chances of copyright infringement can be there.
Profits are very low in case of e-publishing.It is not easy to earn money through this method.
Quality of printed books is much better than e-books.
So we can say that e-publishing has it's own advantages and disadvantages.
