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  • Solution to using sax to parse xml in java

    Solution to using sax to parse xml in java

    In Java, there are two ways to parse xml documents natively, namely: Dom parsing and Sax parsing. Dom parsing is powerful and can be added, deleted, modified and checked. During operation, the xml document will be read into the memory in the form of a doc
    2024-11-24
  • Summary of methods based on regular operations in java

    Summary of methods based on regular operations in java

    Regular expressions are quite efficient in processing strings. Regarding the use of regular expressions, it is more about my own experience. If you are interested, you can refer to relevant books. Here I mainly write about the regular operation methods in
    2024-11-24
  • Summary analysis based on reflection in java

    Summary analysis based on reflection in java

    When I first started learning Java, it was really difficult to understand what reflection was. Some books, even the classic books, explained it in a confusing way. Maybe I was just too stupid. Moreover, it was said online that I would learn frameworks in
    2024-11-24
  • Summary analysis based on generics in java

    Summary analysis based on generics in java

    If I were to directly say what generics are, I really can’t. Here is a question: Define a coordinate point class that can save various types of data, such as integers, floating point types, and string types. Since the variable type is uncertain at first,
    2024-11-24
  • Example analysis of using DOM to parse xml in java

    Example analysis of using DOM to parse xml in java

    DOM is a powerful parsing tool, suitable for small documents. Why do you say that? Because it will load the entire XML document into memory to form a document object tree. It sounds scary in short, but using it to read small things is quite convenient com
    2024-11-24
  • Detailed usage of Java bytecode instruction set

    Detailed usage of Java bytecode instruction set

    A Java virtual machine instruction consists of a byte-length operation code (Opcode) that represents a specific meaning, followed by zero or more operands that represent the operation parameters. Many instructions in the virtual machine do not contain ope
    2024-11-24
  • In-depth analysis of Java serialization mechanism and principles

    In-depth analysis of Java serialization mechanism and principles

    Java serialization algorithm analysis Serialization (serialization) is a process of describing an object as a series of bytes; deserialization deserialization is a process of reconstructing these bytes into an object. The Java Serialization API provides a
    2024-11-24
  • Detailed explanation of the application of Java dynamic proxy

    Detailed explanation of the application of Java dynamic proxy

    Dynamic proxy is actually the java.lang.reflect.Proxy class that dynamically generates a class byte based on all the interfaces you specify. This class will inherit the Proxy class and implement all the interfaces you specify (the interface array you pass
    2024-11-24
  • In-depth analysis of the use of addresses of Java objects

    In-depth analysis of the use of addresses of Java objects

    In traditional Java programming, you will no longer need to deal with Java objects or locations from memory. When you discuss this on forums, the first question that comes up is why do you need to know the address of a Java object? It is a valid question.
    2024-11-24
  • Detailed explanation of the use of interrupt thread (Interrupt) in Java multithreading

    Detailed explanation of the use of interrupt thread (Interrupt) in Java multithreading

    interrupt method interrupt literally means interrupt, but in Java the Thread.interrupt() method actually notifies the thread in some way and does not directly terminate the thread. It's up to the person who wrote the code to decide what to do, and usu
    2024-11-24
  • An in-depth overview of the nature of Java thread interrupts and programming principles

    An in-depth overview of the nature of Java thread interrupts and programming principles

    Historically, Java has tried to provide preemptive limited interrupts, but there have been many problems, such as the abandoned Thread.stop, Thread.suspend and Thread.resume introduced earlier. On the other hand, out of consideration for the robustness of
    2024-11-24
  • Detailed explanation of the implementation of Java character encoding and decoding

    Detailed explanation of the implementation of Java character encoding and decoding

    Character set basics: Character set (Character set) A collection of characters, that is, symbols with special semantics. The letter "A" is a character. "%" is also a character. It has no intrinsic numerical value and has no direct conn
    2024-11-24
  • In-depth analysis based on JavaCore files

    In-depth analysis based on JavaCore files

    Generation time When a Java program is running, JavaCore and HeapDump files are sometimes generated. This usually occurs when the Java program encounters a fatal problem. Sometimes after a fatal problem occurs, the Java application will not die and can co
    2024-11-24
  • Detailed explanation of Java's method to realize whether there is a cycle in a singly linked list

    Detailed explanation of Java's method to realize whether there is a cycle in a singly linked list

    This is a classic Microsoft written test question. The two pointers h1 and h2 traverse the singly linked list from the beginning. h1 moves forward 1 step each time, and h2 moves forward 2 steps each time. If h2 encounters NULL, it means that the ring does
    2024-11-24
  • Description of comprehensive application based on java enumeration class

    Description of comprehensive application based on java enumeration class

    The following code takes a traffic light as an example: Copy the code as follows: public class Test {public static void main(String[] args) {Trafficlight light = Trafficlight.RED;System.out.println(light.time);System.out .println(light.nextLigth());// The
    2024-11-24
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