file handling has been added

Author: codeasarjun

07-file-handling/README.md

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+File handling is an essential concept in programming that allows you to read from and write to files on your computer.
+
+## What is File Handling?
+
+File handling refers to the process of performing operations on files stored in a computer’s file system. It allows you to:
+
+- **Create** new files
+- **Read** data from existing files
+- **Write** data to files
+- **Append** new data to existing files
+- **Delete** files
+
+These operations are fundamental for storing and retrieving data in many applications.
+
+- `read_write_files.py`: A Python script that demonstrates how to perform basic file operations.
+
+
+## Basic File Operations
+
+### 1. Writing to a File
+
+To create a file and write data to it, use the `write_to_file` function. This function takes two arguments:
+
+- `filename`: The name of the file to which data will be written.
+- `content`: The text data that will be written to the file.
+
+When we call this function, it opens the file in write mode. If the file doesn’t exist, it creates a new one. If it does exist, the existing content is overwritten.
+
+Example usage:
+
+```python
+write_to_file('example.txt', 'This is some sample text.')
+```
+

07-file-handling/read_write_files.py

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+
+def write_to_file(filename, content):
+    with open(filename, 'w') as file:
+        file.write(content)
+    print(f"Content written to {filename}")
+
+def read_from_file(filename):
+    with open(filename, 'r') as file:
+        content = file.read()
+    return content
+
+
+file_to_write = '07-file-handling\cricket.txt'
+content_to_write = 'Hello, this is a sample content for the file.'
+
+    
+write_to_file(file_to_write, content_to_write)
+
+content = read_from_file(file_to_write)
+print(f"Content read from {file_to_write}:")
+print(content)