Humanities/Arts Exam > Humanities/Arts Questions > The following code will perform which operati...
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The following code will perform which operation?
object.readline(10)
object.readline(10)
- a)Read first 10 lines
- b)Read first 10 characters of line
- c)Read first 10 bits in line
- d)Read first 10 words of line
Correct answer is option 'B'. Can you explain this answer?
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Most Upvoted Answer
The following code will perform which operation?object.readline(10)a)R...
Concept:
Python File readline() Method:
The readlines() are used to read all of the lines at once and return them as string elements in a list. This method is useful for tiny files since it reads the entire file content to memory and then splits it into individual lines. We may go through the list and use the strip() method to remove the newline 'n' character.
Syntax:
file.readline(size)
Here size is Optional. The number of bytes from the line to return. Default -1, which means the whole line.
Explanation:
object.readline(10)
readline reads a line of the file and returns it in the form of the string. It takes a parameter 10, which specifies the maximum number of bytes that will be read. However, does not reads more than one line, even if 10 exceeds the length of the line.
So it read the first 10 characters of line.
Hence the correct answer is to read the first 10 characters of the line.
Python File readline() Method:
The readlines() are used to read all of the lines at once and return them as string elements in a list. This method is useful for tiny files since it reads the entire file content to memory and then splits it into individual lines. We may go through the list and use the strip() method to remove the newline 'n' character.
Syntax:
file.readline(size)
Here size is Optional. The number of bytes from the line to return. Default -1, which means the whole line.
Explanation:
object.readline(10)
readline reads a line of the file and returns it in the form of the string. It takes a parameter 10, which specifies the maximum number of bytes that will be read. However, does not reads more than one line, even if 10 exceeds the length of the line.
So it read the first 10 characters of line.
Hence the correct answer is to read the first 10 characters of the line.
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Community Answer
The following code will perform which operation?object.readline(10)a)R...
Explanation:
The given code `object.readline(10)` performs the operation of reading the first 10 characters of a line.
Details:
In programming, `object.readline()` is a method used to read a line from a file or a stream. The optional argument `10` passed to the `readline()` method specifies the maximum number of characters to be read from the line.
Here is a breakdown of each option to clarify why the correct answer is option 'B':
a) Read first 10 lines:
If the code was `object.readlines(10)`, it would read the first 10 lines of the file or stream. However, in the given code, `readline` is used instead of `readlines`, so it does not read multiple lines.
b) Read first 10 characters of line:
The code `object.readline(10)` reads the first 10 characters of a single line, not multiple lines. It stops reading after reaching the 10th character or encountering a newline character.
c) Read first 10 bits in line:
The `readline()` method reads characters, not bits. Therefore, this option is incorrect.
d) Read first 10 words of line:
The `readline()` method reads characters, not words. It does not differentiate between words or spaces. Therefore, this option is incorrect.
In conclusion, the correct answer is option 'B' because the given code `object.readline(10)` reads the first 10 characters of a line.
The given code `object.readline(10)` performs the operation of reading the first 10 characters of a line.
Details:
In programming, `object.readline()` is a method used to read a line from a file or a stream. The optional argument `10` passed to the `readline()` method specifies the maximum number of characters to be read from the line.
Here is a breakdown of each option to clarify why the correct answer is option 'B':
a) Read first 10 lines:
If the code was `object.readlines(10)`, it would read the first 10 lines of the file or stream. However, in the given code, `readline` is used instead of `readlines`, so it does not read multiple lines.
b) Read first 10 characters of line:
The code `object.readline(10)` reads the first 10 characters of a single line, not multiple lines. It stops reading after reaching the 10th character or encountering a newline character.
c) Read first 10 bits in line:
The `readline()` method reads characters, not bits. Therefore, this option is incorrect.
d) Read first 10 words of line:
The `readline()` method reads characters, not words. It does not differentiate between words or spaces. Therefore, this option is incorrect.
In conclusion, the correct answer is option 'B' because the given code `object.readline(10)` reads the first 10 characters of a line.
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The following code will perform which operation?object.readline(10)a)Read first 10 linesb)Read first 10 characters of linec)Read first 10 bits in lined)Read first 10 words of lineCorrect answer is option 'B'. Can you explain this answer?
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