Java language graphical user interface development method

Java language has excellent capabilities in graphical user interface development, providing a series of APIs and tools that can be used to design mature, powerful and beautiful user interfaces. This article will introduce the Java language graphical user interface development method, including the two main GUI tool suites, Swing and JavaFX.

1. Swing

Swing is a GUI toolkit provided by the Java platform. It is a new GUI toolkit that supplements AWT (Abstract Window Toolkit) and provides a variety of components and Layout manager can build a more flexible and beautiful user interface. The following are some basic steps for developing Java GUI using Swing:

1. Import Swing class library

import javax.swing.*;

2. Create a top-level container

JFrame frame = new JFrame("My First Swing Application");

3. Set the container size and closing method

frame.setSize(300, 200);
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

4. Add component

JLabel label = new JLabel("Hello , World!");
frame.getContentPane().add(label);

5. Display container

frame.setVisible(true);

Among them, JFrame is a top-level container used to contain the entire GUI application. It is directly inherited from the java.awt.Frame class and can add and manage other components. JLabel is a label component used to display text or images.

In addition to the above basic steps, Swing also provides a variety of containers and components for developers to choose from. For example, JButton is a button component, JTextField is a text box component, JCheckBox is a check box component, etc.

2. JavaFX

JavaFX is another GUI tool suite for the Java platform. It provides a set of modern GUI components and technologies, including text, buttons, and tables that support styling using CSS. , layout and other advanced controls, as well as support for animation, multimedia and 3D graphics. The following are the basic steps for developing Java GUI using JavaFX:

1. Import JavaFX library

import javafx.application.Application;
import javafx.stage.Stage;

2. Inherit Application class

public class MyApp extends Application {

@Override
public void start(Stage primaryStage) {
    primaryStage.setTitle("My JavaFX Application");
    primaryStage.show();
}

}

3. Add components

primaryStage.setScene(new Scene(new Button("Hello, World!"), 300, 250));

4. Launch the application

launch (args);

Among them, Stage is the top-level container in JavaFX, used to contain the entire GUI application, similar to JFrame in Swing. Scene is the scene (i.e. container) used to add and manage components in the layout.

Summary

Swing and JavaFX are commonly used GUI tool suites in the Java language. Both sets of tools have their own advantages and disadvantages. Swing provides more components and layout managers and is more friendly to Java beginners, while JavaFX provides a more modern and flexible GUI design method with good scalability and control. sex. In specific development, selection needs to be based on factors such as project requirements, developer skills and habits.

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