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Java tutorial
  • JButton, JComboBox, JList and JColorChooser component use cases in Java Swing

    JButton, JComboBox, JList and JColorChooser component use cases in Java Swing

    Swing's components are similar to AWT components, but it adds new methods to each component and provides more advanced components. Swing's basic components: 1. Button (JButton): Buttons in Swing can display images, and A button can be set as the d
    2025-01-15
  • Introduction to 2 collection sorting methods in Java

    Introduction to 2 collection sorting methods in Java

    Directly enter the code: import java.util.ArrayList;import java.util.Collections;import java.util.Comparator;import java.util.List;/** * *
    2025-01-15
  • Sharing of tools to determine whether a string is Chinese or English in Java

    Sharing of tools to determine whether a string is Chinese or English in Java

    Directly upload the code: Copy the code as follows: import java.util.regex.Matcher; import java.util.regex.Pattern;/*** *<p> * ClassName ShowChineseInUnicodeB
    2025-01-15
  • Constructor instance analysis in java inheritance

    Constructor instance analysis in java inheritance

    The examples in this article describe the constructor methods in Java inheritance. Share it with everyone for your reference. The details are as follows: Constructor methods in inheritance: 1. During the construction process of a subclass, the constructor
    2025-01-15
  • Java Object class usage example

    Java Object class usage example

    The examples in this article describe the usage of Object class in java. Share it with everyone for your reference. The details are as follows: 1. The Object class is the base class of all java classes. If the extends keyword is not used in the class decl
    2025-01-15
  • Java object transformation example analysis

    Java object transformation example analysis

    The examples in this article describe the concept of java object transformation and are shared with you for your reference. The specific method is as follows: Things to note when object casting (casting) are as follows: 1. A reference type variable of a b
    2025-01-15
  • Java method rewriting example analysis

    Java method rewriting example analysis

    The examples in this article describe java method rewriting and are shared with everyone for your reference. The specific analysis is as follows: 1. Overview of method rewriting: 1. In subclasses, methods inherited from the base class can be rewritten as
    2025-01-15
  • Java advanced tutorial IO basics

    Java advanced tutorial IO basics

    The most important function of a computer is to process data. A useful computer language needs to have good IO capabilities so that unprocessed data flows into the program and processed data flows out. Compared with other languages, Java's IO function
    2025-01-14
  • Java advanced tutorial exception handling

    Java advanced tutorial exception handling

    It is difficult to make a program perfect, and there will inevitably be various abnormalities. For example, there is a bug in the program itself, such as the printer runs out of paper when the program prints, or there is insufficient memory. In order to s
    2025-01-14
  • Java Basic Tutorial: Interface Inheritance and Abstract Classes

    Java Basic Tutorial: Interface Inheritance and Abstract Classes

    In implementing the interface, we use interface syntax to separate the interface from the class definition and form a subject. interface provides interface specifications for classes. In inheritance, we introduce the inheritance mechanism in order to impr
    2025-01-14
  • Java Basics Tutorial Data and Class Methods

    Java Basics Tutorial Data and Class Methods

    We have always defined classes to create objects. Objects are entities with functionality, while classes are type classifications of objects. This is a basic concept of object-oriented. In inheritance, we treat classes as expandable subjects, which improv
    2025-01-14
  • Detailed explanation of inheritance in Java basic tutorial

    Detailed explanation of inheritance in Java basic tutorial

    Inheritance is an important concept in object-oriented programming. Inheritance is another important way to improve code reusability in addition to composition. We saw in composition that composition is the functional interface of an object that is repeat
    2025-01-14
  • Java basic tutorial encapsulation and interface

    Java basic tutorial encapsulation and interface

    To summarize the previous content, object refers to a certain thing, and class refers to the type of object. Objects can have states and actions, that is, data members and methods. Until now, data members and methods have been open to both internal and ex
    2025-01-14
  • Java basic tutorial constructor and method overloading

    Java basic tutorial constructor and method overloading

    In Methods and Data Members, we mentioned that objects in Java are initialized when they are created. During initialization, the object's data members are assigned initial values. We can initialize it explicitly. If we do not assign an initial value t
    2025-01-14
  • Java Basics Tutorial: Object Methods and Data Members

    Java Basics Tutorial: Object Methods and Data Members

    In the article "From Hello World to Object-Oriented" in the Basic Java Tutorial, we have a preliminary understanding of objects. Data members in an object represent the state of the object. Objects can perform methods that represent specific act
    2025-01-14
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