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  • Solution to the shared synchronization problem of tomcat memecached session in Java

    Solution to the shared synchronization problem of tomcat memecached session in Java

    Cause of the incident: A main project "pictures describing beautiful things", and another sub-function is the brand owner's entry function, which is a project separate from the main project. In order to share logged-in user information, sess
    2025-01-23
  • Analysis of static keyword usage examples in java

    Analysis of static keyword usage examples in java

    The examples in this article describe the usage of the static keyword in Java and are shared with you for your reference. The specific analysis is as follows: 1. Introduction: 1. In a class, member variables declared with static are static member variable
    2025-01-23
  • In-depth analysis of the use of boolean objects in Java programming

    In-depth analysis of the use of boolean objects in Java programming

    A variable that can only have one of two values, true or false, is a Boolean type variable, and true and false are Boolean direct quantities. You can use the following statement to define a Boolean variable named state: boolean state=true This statement u
    2025-01-23
  • Examples to explain how to use do-while statements in Java

    Examples to explain how to use do-while statements in Java

    Before learning the do/while statement, first understand how the while statement works. The while statement first performs conditional judgment and then executes the loop body within the curly braces. The difference between the do/while statement and the
    2025-01-22
  • Java Design Patterns Decorator Pattern Detailed Explanation and Code Examples

    Java Design Patterns Decorator Pattern Detailed Explanation and Code Examples

    The decorator pattern can dynamically add capabilities to existing objects. Below, I will use a simple example to demonstrate how to use the decorator pattern in a program. 1. Decorator Pattern Let us assume that you are looking for a girlfriend. There ar
    2025-01-22
  • Example of java getting system icon and file icon based on extension

    Example of java getting system icon and file icon based on extension

    Copy the code as follows: import java.io.File; import java.io.IOException; import java.awt.BorderLayout; import java.awt.event.ActionEvent;i
    2025-01-22
  • Preliminary analysis of the use of AffineTransform class in Java

    Preliminary analysis of the use of AffineTransform class in Java

    The AffineTransform class describes a two-dimensional affine transformation function, which is a linear transformation from two-dimensional coordinates to two-dimensional coordinates, maintaining the "straightness" of the two-dimensional graphic
    2025-01-22
  • How to copy files between two servers in java

    How to copy files between two servers in java

    The example in this article describes the method of copying files between two servers in Java. Share it with everyone for your reference. The specific analysis is as follows: Usually the file copy function we use most is the file copy function between the
    2025-01-22
  • Java implementation of Huffman coding and inverse coding example sharing (Huffman algorithm)

    Java implementation of Huffman coding and inverse coding example sharing (Huffman algorithm)

    Copy the code as follows: //Huffman coding implementation class public class HffmanCoding {private int charsAndWeight[][];// [][0] is the character, [][1] stores the weight (number of times) of the character private int
    2025-01-22
  • Java study notes eclipse+tomcat configuration

    Java study notes eclipse+tomcat configuration

    Plan to start learning java. Step 1. Create a new server in the servers window. 2. Select the corresponding tomcat version in the pop-up interface. 3. Here is the key. Do not select the existing project, otherwise the final generated server configuration
    2025-01-21
  • How to update records in database using JDBC program

    How to update records in database using JDBC program

    The example in this article describes how the JDBC program updates records in the database. Share it with everyone for your reference. The details are as follows: When using JDBC programs (Eclipse, MyEclipse) to update records in the database (MySql), you
    2025-01-21
  • java generics learning examples

    java generics learning examples

    Java generics (Generics) are a new feature introduced in JDK5 that allow the use of type parameters (Type Parameter) when defining classes and interfaces. The declared type parameters are replaced with specific types when used. The most important applicat
    2025-01-21
  • SWT (JFace) experience Sash (activity control)

    SWT (JFace) experience Sash (activity control)

    The demo code is as follows: Copy the code as follows: package swt_jface.demo9; import org.eclipse.swt.SWT; import org.eclipse.swt.widgets.Display; import org.eclipse.swt.widgets.Event; import org.eclipse. swt.widgets.Listener; import org.eclipse.swt.widg
    2025-01-21
  • Usage example of this in java (keyword this)

    Usage example of this in java (keyword this)

    this is an implicit pointer to itself. Simply put, which object calls the method where this is located, then this is that object. Sample code: TestThis_1.java Copy the code as follows:/* Question: What is this* Output result: * A@4e44ac6a*/public
    2025-01-21
  • Solution to memory leak problem caused by Handler in Android

    Solution to memory leak problem caused by Handler in Android

    In common Android programming, Handler is often used when performing asynchronous operations and processing returned results. Usually our code is implemented like this. Copy the code as follows: public class SampleActivity extends Activity {private fi
    2025-01-21
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