IO 🆚 NIO

🆚 Difference:

• 공통점: used to perform read and write operations
• 차이점: How to use it in network programming

✅ IO

Input, Output

• 1️⃣ blocking

• process waits until data operation finishes

• 2️⃣ input, output with: stream
• use stream for transferring data
• unidirectional data transfer

• 3️⃣ buffer: Non-buffer ❌
• 4️⃣ asynchronous: support ❌

✅ NIO

New Input, Output

• 1️⃣ non blocking

• process doesnt wait, can do other work

• 2️⃣input, output with: channel
• channel: medium for efficient data transmisison between entity and buffer
• data is read into buffer, processed using a channel
• bidirectional

• 3️⃣ buffer: Buffer ⭕️
• 4️⃣ asynchronous: support ⭕️