Combo box is a combination of text fields and drop-down list.JComboBox component is used to create a combo box in Swing. Following is the constructor for JComboBox, JComboBox(String arr[]) Example using JComboBox import javax.swing.*; import java.awt.event.*; import java.awt.*; publ...
1)AWT(Abstract windows toolkit) 包括了很多类和接口,用于java Application的GUI(Graphics User Interface图形界面编程) 2)GUI的各种元素(窗口,按钮,文本框)等都由java类来实现 3)使用AWT所涉及的类一般在java.awt包及其子包中。 4)Container和Component是AWT中的两个核心类。 所有的可以显示出来的图形元素都被称...
In Java, Swing toolkit contains a JTree Class. It is under package javax.swing.JTreeclass. It is used for creating a tree-structured of data. It is a very complex component. Declaration public class JTree extends JComponent implements Scrollable, Accessible ...
Example of JButtonIn this example, we are creating two buttons using Jbutton class and adding them into Jframe container.import javax.swing.*; import java.awt.event.*; import java.awt.*; public class testswing extends JFrame { testswing() { JButton bt1 = new JButton("Yes"); //...
This chapter introduces the generic graphical widget used within the AWT package, Component, along with a trio of specific components: Label, Button, and Canvas. It also covers the Cursor class, new to Java 1.1. (Cursor support was previously part of the Frame class.) Although many objects ...
Here is a comparison of Java Swing and Java AWT: Advantages of Java Swing Java Swing provides a number of advantages for developing graphical user interfaces (GUIs) in Java. Some of the key advantages of Java Swing are Platform Independence:Swing is written entirely in Java, which makes it ...
the difference is at what level this occurs. AWT uses a set of peer interfaces. The peer interface makes it possible for a pure Java-language graphic component to use a corresponding real component—the peer object—in the native environment. With AWT, you don’t generally deal directly with...
Moves the specified component to the specified z-order index in the container. If the component is a child of some other container, it is removed from that container before being added to this container. The important difference between this method andjava.awt.Container.add(Component, int)is ...
We would like to know how to keep preferred sizes of components in center of BorderLayout. Answer import java.awt.BorderLayout; import java.awt.GridBagLayout; //ww w .j a v a 2 s.co m import javax.swing.Box; import javax.swing.BoxLayout; import javax.swing.JComboBox; ...
import java.awt.*; import javax.swing.*; import javax.swing.plaf.LayerUI; public class Wallpaper { public static void main(String[] args) { javax.swing.SwingUtilities.invokeLater(new Runnable() { public void run() { createUI(); } }); } public static void createUI() { JFrame f =...