Class Component (package java. awt ) is a superclass that declares the common features of GUI components in packages java. awt and javax. swing .
Which class is the superclass of all Swing components?
Class JComponent (package javax. swing ) is a subclass of Container . JComponent is the superclass of all lightweight Swing components and declares their common attributes and behaviors. Because JComponent is a subclass of Container , all lightweight Swing components are also Containers .
What is JTable in Java?
The JTable is used to display and edit regular two-dimensional tables of cells. See How to Use Tables in The Java Tutorial for task-oriented documentation and examples of using JTable .
Is JTable a component?
A JTable component is a user-interface component that presents data in a two-dimensional table format.
Which is the superclass of all Java classes?
A: The Object class, which is stored in the java. lang package, is the ultimate superclass of all Java classes (except for Object ).
Which is the superclass for various AWT component?
MenuComponent is an abstract class and is the superclass for all menu-related components.
What is Swing component?
Swing components are the basic building blocks of an application. We know that Swing is a GUI widget toolkit for Java. Every application has some basic interactive interface for the user. For example, a button, check-box, radio-button, text-field, etc. These together form the components in Swing.
Which are the Swing class?
swing package provides classes for java swing API such as JButton, JTextField, JTextArea, JRadioButton, JCheckbox, JMenu, JColorChooser etc.
What is Java Swing used for?
Java Swing is part of Java Foundation Classes. It is used to create window-based applications which makes it suitable for developing lightweight desktop applications. Java Swing is built on top of an abstract windowing toolkit API purely written in Java programming language.
What is MouseListener in Java?
Java MouseListener Interface
The Java MouseListener is notified whenever you change the state of mouse. It is notified against MouseEvent. The MouseListener interface is found in java. awt. event package.
How add data from database to JTable in Java?
Display Records From Database Using JTable in Java
DisplayEmpData.java. emp.sql. Open the NetBeans IDE.Choose “Java” -> “Java Application” as in the following.Now type your project name as “JTableApp” as in the following.Now create a new Java Class with the name “DisplayEmpData” and provide the following code for it.
What is JscrollPane in Java Swing?
A JscrollPane is used to make scrollable view of a component. When screen size is limited, we use a scroll pane to display a large component or a component whose size can change dynamically.
Which component is swing represents data in row and columns?
The JTable class is a part of Java Swing Package and is generally used to display or edit two-dimensional data that is having both rows and columns. It is similar to a spreadsheet.
Which of the following is a superclass of every Object in Java SE?
Explanation: Object class is superclass of every class in Java.
