Category: The back-end

Alt+Ins: Quickly call up getter, setter, or toString methods. application.properties application. Previous configuration files; Most use XXXX.<groupId>org.spring Framework. Case:...

Sequence in this paper, we study the javaString internString. Intern () Java. The base/Java/lang/String. Java when the intern method, if the constant pool already contains...

Features: Pseudo-data type, based on String implementation, maximum length of 512M, suitable for 2^32 different bytes. Daily active statistics, IP login statistics. Bloom filter. Stores...

Java Object Memory structure Object Header New an empty Object in 32 for the system

In Java, Class itself corresponds to a Class, which represents a Class file. Any Class file is an object of Class. You can think of...

Servlet Learning Notes (4) 一, Session technology Cookie, session 1. What is conversation technology? Refers to the user opens a browser, visits a website, as...

Common implementation classes under Collection and Map A Collection is inherited by the List and Set interfaces. Its main diagram is: List The implementation class...

In recent interviews, I've had a lot of conversations with candidates about "synchronous/asynchronous, blocking/non-blocking", and found that everyone had a vague understanding of these concepts....

Each line of code must end with a semicolon (;). All symbols must be In English. Java code is case sensitive and {},(), and so...