包含标签：Java 的文章
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Understanding and use of filechannel class
Understanding and use of filechannel class (Java. NiO. Channels. Filechannel) Knowledge points: 1. Filechannel class a…… -
thread
1、 Thread concept A process is an executing program. In the operating system, the process is the smallest unit for sy…… -
HashMap, treemap, LinkedHashMap learning
Map is mainly used to store key value pairs and obtain values according to keys. Therefore, duplicate keys (repeated a…… -
IO and NiO
1、 The concept of file and the operation of file basic functions 1. What is a file: a file can be considered as a col…… -
Java Concurrent Programming: implementation of copyonwrite container
Java Concurrent Programming: copyonwritearraylist of concurrent container (Reprint) Original link: Copy on write, refe…… -
Jmap view memory usage and generate heapdump
If you want to analyze your Java application, you can use jmap program to generate heapdump file example: Jmap - hea…… -
Nine new features in Java 9
Nine new features in Java 9 Java 7 was released in 2011, Java 8 was released in 2014, and java9 was released on Sept…… -
Java Naming Convention
Java Naming Convention 1、 Naming conventions 2. Package name all lowercase 3. The first letter of the class name is c…… -
Java regular expression
1. What is a Java regular expression 1. Regular expressions (regex) is a pattern used to describe a certain amount of …… -
Binary search in Java
srcArray[] = {3,5,11,17,21,23,28,30,32,50,64,78,81,95,1010,srcArray.length - 1,81 -
Conversion between JSON object and string
< H1 class = "posttitle" > conversion between JSON object and string < div class = "cnblogs_code" > < d…… -
Java multithreading learning (the summary is very detailed!!!)
Process: each process has an independent code and data space (process context). Switching between processes will have …… -
Java IO streaming learning
Java IO streaming learning Classes or interfaces related to Java stream operations: Java flow class diagram structure:…… -
Java Concurrent Programming: the use of thread pools
Java Concurrent Programming: the use of thread pools In the previous article, we created a thread when using threads, …… -
Underlying implementation of ArrayList, LinkedList and HashMap
The bottom implementation of ArrayList is an array (fixed size). When the length of the array is not enough, a new arr…… -
Four reference modes of Java
JAVA memory management is divided into memory allocation and memory recycling, which are not the responsibility of pro…… -
Various sorting algorithms implemented in Java (including bubbling, fast sorting, etc.)
// Heap sorting is unstable. Import Java util. Arrays; public class HeapSort { public static void main(String[] arg…… -
Installation and use of redis
Environment: CentOS 6.6 redis version: redis-3.0 (considering the characteristics of redis 3.0 in clustering and perfo…… -
Java Concurrent Programming: the origin of processes and threads
The foundation of Java multithreading: the origin of processes and threads Having introduced the basic knowledge of …… -
Caching strategies commonly used in J2EE development
1、 What is cache? 1. Cache is a special memory subsystem of cache memory, in which frequently used data is copied for…… -
Installation and use of ActiveMQ
1、 Installation of ActiveMQ Environment: CentOS 6, jdk8 1. Ensure that the system has installed the available JDK ver…… -
How many ways to implement Java multithreading? How are threads synchronized
There are two ways to implement multithreading in Java: < span style = "font size: 15px;" > 1. Directly inherit…… -
Detailed explanation of generics in Java – Java programming idea
Generics in Java refer to C + + templates. The boundary of Java is the limitation of Java generics. One of the most co…… -
Network programming
1、 Seven layer model of network From bottom to top are physical layer (circuit, wiring) - data link layer (switch) - …… -
Summary of 30 interview questions in Java
A start() B run() C exit() D getPriority() Answer: abd 2. The following is about Java The correct statement of lang. e…… -
Message Oriented Middleware
1、 What is message oriented middleware Message oriented middleware is the basic software for sending and receiving me…… -
Java eclipse breakpoint debugging
Java eclipse breakpoint debugging How to debug Java programs? When you first learn Java, you will feel that ide debu…… -
reflex
1、 What is reflection Java programs can dynamically load, parse and use some data types that are uncertain in the com…… -
Linux configuration Java environment variables (detailed)
I Unzip and install JDK, and enter jdk-6u14-linux-i586.0 under the shell terminal Bin file directory, execute the comm…… -
The difference between = = and equal () method in Java
Differences in methods In Java = = compares addresses and equal compares values. Example: -
Java Concurrent Programming: inter thread communication wait, notify
Java Concurrent Programming: two ways of cooperation between threads: wait, notify, notifyAll and condition We've disc……