What methods can be used to read data from a file in a program?

In Python, there are several methods to read data from a file:

1. Read the entire file at once:

with open('file.txt', 'r', encoding='utf-8') as f:
    data = f.read()

2. Read line by line:

with open('file.txt', 'r', encoding='utf-8') as f:
    for line in f:
        print(line.strip())

3. Read into a list of lines:

with open('file.txt', 'r', encoding='utf-8') as f:
    lines = f.readlines()

4. Read using the read(size) method:

with open('file.txt', 'r', encoding='utf-8') as f:
    chunk = f.read(1024)  # read the first 1024 bytes

Using the with statement ensures the file is closed after reading. Choose the appropriate method depending on the task.