[Solved] What will be the output of this code?with open('test.txt', 'w') as f: f.write('Hello') with open('test.txt', 'a') as f: f.write(' World') with open('test.txt', 'r') as f: print(f.read()) | Python

Python - Standard Library Usage

What will be the output of this code?

with open('test.txt', 'w') as f:
    f.write('Hello')

with open('test.txt', 'a') as f:
    f.write(' World')

with open('test.txt', 'r') as f:
    print(f.read())

AError: file not found

BHello

CHello World

D World

Step-by-Step Solution

Solution:

Step 1: Write 'Hello' to the file
The first block opens 'test.txt' in write mode, which creates or clears the file, then writes 'Hello'.
Step 2: Append ' World' to the file
The second block opens the file in append mode and adds ' World' after 'Hello'.
Step 3: Read and print the file content
The last block reads the full content, which is 'Hello World', and prints it.
Final Answer:
Hello World -> Option C
Quick Check:
Write + append = 'Hello World' [OK]

Quick Trick: Write clears file, append adds to end [OK]

Common Mistakes:

Expecting append to overwrite
Not closing files before reading
Confusing write and append modes

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What will be the output of this code?

Step 1: Write 'Hello' to the file

Step 2: Append ' World' to the file

Step 3: Read and print the file content

Final Answer:

Quick Check:

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