Readers ask: Which method will return an empty string when it has attempted to read beyond the end of a file?

What does it mean when the readline method returns an empty string?

What does it mean when the readline method returns an empty string? The readline method returns an empty string (“”) when it has attempted to read beyond the end of a file. Instead, you write its new modified values to the temporary file.

What is returned when the readline method reaches the end of the file?

readline() returns an empty string, the end of the file has been reached, while a blank line is represented by ‘n’, a string containing only a single newline.

Which method could be used to remove specific characters from the end of a string?

The Python strip() method removes any spaces or specified characters at the start and end of a string.

Is it possible to create a while loop that determines when the end of a file has been reached?

It is possible to create a while loop that determines when the end of a file has been reached. If the last line in a file is not terminated with /n the readline method will return the line without /n. The data is copied from a variable in RAM to a file.

What do Readlines () and split () do?

Reading line by line

readlines() is used to read all the lines at a single go and then return them as each line a string element in a list. This function can be used for small files, as it reads the whole file content to the memory, then split it into separate lines.

What is Readlines () in Python?

Python File readlines() Method

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The readlines() method returns a list containing each line in the file as a list item. Use the hint parameter to limit the number of lines returned. If the total number of bytes returned exceeds the specified number, no more lines are returned.

What method is best for reading the entire file into a single string in Python?

Use file. read() to read an entire file

read() to read an open text file into a string. Use str. replace() to replace all newline characters with spaces.

What value does read () return when it has reached the end of a file?

What value does read() method return when it reaches the end of a file in java? The read() method of the input stream classes reads the contents of the given file byte by byte and returns the ASCII value of the read byte in integer form. While reading the file if it reaches the end of the file this method returns -1.

What does readline () method return?

The readlines method returns the entire contents of the entire file as a list of strings, where each item in the list is one line of the file. The readline method reads one line from the file and returns it as a string. The strings returned by readlines or readline will contain the newline character at the end.

How do you remove a given character from string?

How to remove a particular character from a string?

  1. public class RemoveChar {
  2. public static void main(String[] args) {
  3. String str = “India is my country”;
  4. System.out.println(charRemoveAt(str, 7));
  5. }
  6. public static String charRemoveAt(String str, int p) {
  7. return str.substring(0, p) + str.substring(p + 1);
  8. }
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How do I remove a specific character from a string in Python?

replace() to remove specific characters. Call str. replace(old, new) with the character to remove as old and the empty string “” as new. Assign the resultant string to the original string’s variable.

What is Strip () in Python?

The strip() method removes any leading (spaces at the beginning) and trailing (spaces at the end) characters (space is the default leading character to remove)

Which statement would you use to delete an existing key value pair from a dictionary?

To delete a key, value pair in a dictionary, you can use the del method. A disadvantage is that it gives KeyError if you try to delete a nonexistent key. So, instead of the del statement you can use the pop method. This method takes in the key as the parameter.

What does the following statement mean num1 num2 Get_num ()?

What does the following statement mean? num1, num2 = get_num() The function get_num() is expected to return a value each for num1 and num2. The randrange function returns a randomly selected value from a specific sequence of numbers.

What will be the output after the following code is executed and the user enters 75 and 0?

what will be the output after the following code is executed and the user enters 75 and 0 at the first two prompts? nothing; there is no print statement to display average.

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