Interview questions _66_to_75_java IO and NIO's face questions

IO is a very important point in the Java interview. You should have a good grasp of Java Io,nio,nio2 and the basics of disk IO related to the operating system. The following are frequently asked questions in Java IO.

66) in my Java program, I have three sockets, how many threads do I need to handle?

How do I create a bytebuffer in Java?

In Java, how do I read and write Bytebuffer?

is Java using big-endian or small-end?

What is the byte order in Bytebuffer?

In Java, what is the difference between a direct buffer and an indirect buffer? Answer

What is the memory-mapped buffer in Java? (Answer answer)

) socket option What does TCP NO DELAY mean?

What is the difference between the TCP protocol and the UDP protocol? (Answer answer)

In Java, what is the difference between Bytebuffer and StringBuffer? Answer

Interview questions _66_to_75_java IO and NIO's face questions