The three objects of the event processing model: 1. Event source; the place where the event occurs is usually each component. 2. Events; encapsulate specific things that happen on interface components. 3. Event listener: Responsible for monitoring events that occur in event sources and responding accordingly to various events.
The operating environment of this tutorial: windows7 system, java10 version, Dell G3 computer.
Three types of objects in the event listening and processing model
1. Event Source: The place where the event occurs, usually each component, such as a button, window;
2. Event: Event encapsulates specific things that occur on interface components.
3. Event Listener: Responsible for monitoring events that occur in event sources and responding accordingly to various events.
For more programming-related knowledge, please visit: Programming Teaching! !
The above is the detailed content of What are the three objects of the event processing model?. For more information, please follow other related articles on the PHP Chinese website!

Java's Nashorn engine enables JavaScript scripting within Java apps. Key steps include setting up Nashorn, managing scripts, and optimizing performance. Main issues involve security, memory management, and future compatibility due to Nashorn's deprec

Java's try-with-resources simplifies resource management by automatically closing resources like file streams or database connections, improving code readability and maintainability.

The article discusses the Java Virtual Machine (JVM), detailing its role in running Java programs across different platforms. It explains the JVM's internal processes, key components, memory management, garbage collection, and performance optimizatio

Java enums represent fixed sets of values, offering type safety, readability, and additional functionality through custom methods and constructors. They enhance code organization and can be used in switch statements for efficient value handling.

The article discusses various Java garbage collection algorithms (Serial, Parallel, CMS, G1, ZGC), their performance impacts, and suitability for applications with large heaps.


Hot AI Tools

Undresser.AI Undress
AI-powered app for creating realistic nude photos

AI Clothes Remover
Online AI tool for removing clothes from photos.

Undress AI Tool
Undress images for free

Clothoff.io
AI clothes remover

AI Hentai Generator
Generate AI Hentai for free.

Hot Article

Hot Tools

Dreamweaver Mac version
Visual web development tools

SAP NetWeaver Server Adapter for Eclipse
Integrate Eclipse with SAP NetWeaver application server.

Atom editor mac version download
The most popular open source editor

VSCode Windows 64-bit Download
A free and powerful IDE editor launched by Microsoft

SublimeText3 Chinese version
Chinese version, very easy to use
