• File Input: File se data read karna.
• File Output: File mein data write karna.
• File handling ke liye java.io aur java.nio packages use hote hain.

Important Classes for File I/O

• File: File ya directory ka representation.
• FileReader: Characters read karne ke liye.
• BufferedReader: Efficient character reading ke liye (large data).
• FileWriter: Characters write karne ke liye.
• BufferedWriter: Efficient writing ke liye.
• PrintWriter: Text data write karne ke liye, with better formatting.
• FileInputStream/FileOutputStream: Bytes read/write karne ke liye.

create a file

Write in a file

Read a file

Delete a file