Recalling the goal

• How to use IO in java
• Distinguish between different text and binary IO IO's
• FileInputStream used to read and write bytes and FileOutpustStream.
• FilterInputStream base class used to filter the data and FilterOutputStream.
• DataInputStream used to read or DataOutputStream basic types of values ​​and character strings.
• Use BufferedInputStream BufferedOutputStream and to improve I / O performance.
• Write a file copy program.
• Use ObjectOutputStream and ObjectInputStream achieve the storage and recovery of the object.
• Make the object implements Serializable serializable
• Serialized array
• Use RandomAccessFile to read and write files.