Java

20165301 2016-2017-2 "Java Programming" X-week study summarySummarizing the contents of textbook learning 1.1 the status of Java Java is particularly suitable for the development of Internet applications and dominates the network. Java

20165203 2017-2018-2 "Java program design" the first week to summarize the learning contents of teaching materials (a) the status of JavaJava is an object-oriented programming, and involves the network, multithreading and other important basic

Java Process Control includes sequential control, conditional control, and loop control Sequential control is the execution of each statement from beginning to end Conditional control, which executes a statement based on a conditional

1, = =The data types in Java can be divided into two categories:1. Basic data type, also known as raw data typeByte,short,char,int,long,float,double,boolean the comparison between them, apply the double equals sign (= =), compare their values.2.

Synchronization and inter-thread communication: CommunicationCommunication refers to a message passing between two threads.Now that the message is being delivered, there must be a succession relationship between the receiving thread

20165101 Liu Tiano 2017-2018-2 "java program design" The 1th Week study summary textbook Learning content Summary The status of Java Features of Java Installing the JDK Java Application Development Steps Anti-compilation Install

Threadlocal is typically used to hold multiple threads modifying shared variables so that each thread has access to its own modified variable value. My rough impression of threadlocal was that it was a mapOne application:Declare a shared variable

One, Java file naming specification1. Package NameThe name must all be in English lowercase letters, prohibit the use of "underline" characters. (in addition to constants, the use of underscore characters is not recommended in Java naming

Before all of the basic knowledge of Java essays, organized into a high-quality more than 10 essays, almost a few relatively fragmented essay synthesis of the present one, self-thinking is good.Java Fundamentals (i) deep parsing of basic typesJava

1. What is the difference between int and integer?A: Java is a nearly pure object-oriented programming language, but for the convenience of programming or the introduction of basic data types, but in order to be able to use these basic data types as

A memory leak is an object or variable that is no longer being used and is always occupied in memory. However, there is a garbage collection mechanism in Java that can automatically purge objects that are no longer in use from memory.Even so, there

The BigInteger classes and BigDecimal classes provided by Java can be used when the primary integer and floating-point precision do not meet the requirements.Java.math.BigIntegerJava.math.BigInteger provides the method: BigInteger Add

Recently, when I read the Jackson source, I found that there was a code return type written by T, and I wrote it by object. Search the Internet for this syntax sugar, find a relatively simple explanation on the StackOverflow, carry over

---------------------------------------Classification of data types in Java:Basic Data type: 4 Class 8 kinds. BYTE, short, int (integer default), long, float, double (decimal default), Char, BooleanReference data types: classes, interfaces, arrays,

Referenced from: http://blog.csdn.net/langhong8/article/details/50938041This article mainly introduces the string constant pool in Java in detail, the JVM in order to reduce the repetition of string object creation, it maintains a special memory,

Socket ChannelThe socket channel and file channel have different characteristics: The socket channel class can run in nonblocking mode and is optional. These two characteristics can activate large programs (such as network services and

First, object-orientedthree main features of object-oriented:1. Encapsulation: Privatization of class properties and provision of public getset methods to the outside2. Inheritance: Inheriting existing classes with a new class can directly use the

JDK dynamic proxy ProxyGenerator generates the byte code file parsing of the proxy class, And JDK ProxyGenerator Through the previous analysis, we know that the Proxy class is generated through the ProxyClassFactory factory of the Proxy class. This

Use Maven to get detailed explanation of the first Spring Boot program, mavenspring Preface To learn a new technology, don't worry about its principles, procedures, how to organize code or something. Copy a demo directly from the official website or

Java environment variable configuration-simple cainiao edition, java environment variable cainiao NO1: Path Configuration: User Path: % JAVA_HOME % \ bin System Path: % java_home % \ bin; % java_home % \ jre \ bin   NO2: CLASSPATH