Programmer Group

06 Java SE IO By Kevin Song Overview of 06-01 IO Flow 06-02 Byte Stream and Character Stream 06-02-01 character stream 06-02-02 byte stream 06-02-03 Conversion Flow Operating Rules of 06-02-04 IO Flow 06-03 File class 06-03-01 Recursion 06-04 Properties Collection 06-05 Other IO Classes 06-05-01 Print Stream 06-05-02 Sequence Strea ...

From Java 1.0 to 1.3, we face the following problems when developing applications that require I/O support: Without the concept of data buffers or channels, developers have to program to deal with many of the underlying details. I/O operations are blocked and scalability is limited The supported character set encoding is limited and requires a ...

When the new Linux host completes the network configuration, that is, it can access the network normally, we can carry out network correlation detection through the relevant tools of Linux. For example, the most commonly used ping, netstat, ss, traceroute, ethtool and other related commands. This paper mainly describes the use of these command ...

mysql, mysqldump, mysqldump, php connection mysql service often prompts the following error: ERROR 2002 (HY000): Can't connect to local MySQL server through socket '/var/lib/mysql/mysql.sock' (2) There are generally two reasons for this problem: 1. The mysql service is not functioning properly: Since mysql's socket file is created when m ...

I learned the Express framework before, and I got a general idea about it. Based on node.js server, I built a simple one. I finished all kinds of middleware use and routing functions. Then I got to communicate with you, including monitoring the changes of files or data, and monitoring and processing of events. Then I used Socket.io. I just tou ...

Last year, we used Retrofit+OkHttp to make network requests when we reconstructed our company's project. Because our company's network requests are accessed by https, we began to solve the problem of Https network transmission after encapsulating the framework of Retrofit+OkHttp network requests suitable for our project. At first, I read a lot ...

This concept BIO programming Traditional BIO programming Code example: public class Server { final static int PROT = 8765; public static void main(String[] args) { ServerSocket server = null; try { server = new ServerSocket(PROT); System.out.println(" server start .. "); // Blockin ...

Installation of mysql and Workbench on mac is very fast, mainly because it tramples a lot of holes when importing csv data. mysql start Click MySql in system preferences to enter the interface to start mysql. Enter mysql-u root-p in terminal and enter password to login mysql. Before importing data, please ensure that the imp ...