Java

1. About serialization and deserialization We should all probably know the meaning of serialization and deserialization in Java, serialization is the conversion of a Java object into binary to transmit on disk or network stream, and deserialization

The Java applet has three source files, and the suffix name is. Java,.class and. Jar. The only. java file allows you to read and modify (and, of course, you need to know a little Java programming), but. java files cannot be applied directly, and

Java is becoming more and more widely used in www because of its flexibility, and many web pages use Java to increase dynamic and interactive conversations with users. Java script and Java applets are most commonly used in www. Java script is fast

Memory management is an important factor that affects the performance of software applications. Allocating and unloading memory takes longer than the actual data calculation time. Although C + + can directly control memory allocation and release,

Import java.awt.*; import java.awt.event.*; import javax.swing.*; import java.io.*; class Chooserrun extends JFrame implements ActionListener { JButton button; JTextArea text; Jtextpane TextPane; FileInputStream ReadFile; JScrollPane

Java programming has been known, there is a garbage collector in Java mechanism, when it runs (usually automatically when system memory is low to a certain extent), the memory occupied by objects that are no longer in use is reclaimed, so in Java

There is a difference between the automatic collection of the Sun JVM and the programmatic explicit invocation of System.GC (). Automatically recycled thread level is the lowest, if the system is more and more busy, more and more pressure, then

I began to learn Java programming to contact OOP (object-oriented programming), just started to write programs in Java feel very awkward, because I used to use C to write programs, appreciate the simplicity and efficiency of C, like C concise and

error| Program | Execution should do this by checking your environment and your actions: 1, your name is right? Java requires that your file be strictly corresponding to your class name. For example, public class helloworld{... Then the filename

Solve | The problem | chinese | Garbled five, we want to have a knowledge of Java compiler: Javac? encoding We often do not use encoding this parameter. In fact, encoding this parameter is very important for cross-platform operation. If encoding is

The reason to take this problem out again, because we operate Java objects (object) are all through the object of the reference (object references), reference can be interpreted as pointers, easy for people to correspond to the C + + address above.

JDK1.5.1 out, is a perfunctory version of the Debug. The most important revolution in feeling JDK1.5 is annotations, while the rest, such as generics and concurrency and JVM tools, may be important weapons for some opensource, but they have little

Web page Access a Web page through the Java.net.Socket class and return the result Import java.io.*;Import java.net.*;public class Firstsocket{public static void Main (String args[]){Determine if the parameter is two, the correct usage for the

Chart|java objects Jfreechart Java Object Relationship Cyberspace Blog China Category: Java technology, Jfreechart is an excellent open source Java 2D Project, the disadvantage of which is the lack of documentation, both in English and Chinese.

Notes | programming Chapter II the deployment of Java-ee in fact, this chapter is about as a developer, especially the developer, is almost skipped, because this is the basic common sense, should understand. But it's kind of interesting: Originally

Lazy computations, which are evaluated as much as possible, are characteristic of many functional programming languages. Lazy collections provide their elements when they are needed without having to compute them in advance, which brings some

In the previous section, we have learned about the commonly used keyword synchronized in Java multithreaded programming and the object locking mechanism associated with it. In this section, let's understand the lock mechanism in the newly introduced

I wrote one in C + +, the code is not around. However, you can be prompted, the amount of 4 bits, such as 1234567 can be divided into 1234 and 567. In addition, the number of 0 in the middle must be written 0, but to pay attention to a number of

LeetCode -- Longest Common Prefix, longestprefixmatch Write a function to find the longest common prefix string amongst an array of strings. Returns the longest common prefix of all strings. Idea: first compare the public part of the first two

Buffer in Java NIO (2) create/copy a Buffer, niobufferHow to create a buffer You can create a buffer in either of the following ways: 1. Call the allocate Method 2. Call the wrap Method The following uses charBuffer as an example to describe the