What Are AWT Controls?

What is AWT package in Java?

awt package is the main package of the AWT, or Abstract Windowing Toolkit.

It contains classes for graphics, including the Java 2D graphics capabilities introduced in the Java 2 platform, and also defines the basic graphical user interface (GUI) framework for Java..

How do I use AWT?

AWT Example by Inheritanceimport java.awt.*;class First extends Frame{First(){Button b=new Button(“click me”);b.setBounds(30,100,80,30);// setting button position.add(b);//adding button into frame.setSize(300,300);//frame size 300 width and 300 height.setLayout(null);//no layout manager.More items…

What is API in Java?

The full form of API is Application Programming Interface. It is a document which gives you the list of all the packages, classes, and interfaces, along with their fields and methods. Using these API’s, the programmer can know how to use the methods, fields, classes, interfaces provided by Java libraries.

What is AWT in the army?

AWT stands for Army Warrior Tasks (US Army) Suggest new definition. This definition appears very rarely and is found in the following Acronym Finder categories: Military and Government.

Which interface is used for push button in AWT?

Button class is used to create a push button control, which can generate an ActionEvent when it is clicked. In order to handle a button click event, ActionListener interface should be implemented.

What is the use of AWT?

Abstract Window Toolkit (AWT) is a set of application program interfaces ( API s) used by Java programmers to create graphical user interface ( GUI ) objects, such as buttons, scroll bars, and windows. AWT is part of the Java Foundation Classes ( JFC ) from Sun Microsystems, the company that originated Java.

What are controls in Java?

What Are Java Controls? Java controls are reusable components you can use anywhere within a platform application. You can use built-in controls provided with WebLogic Workshop, or you can create your own. Note: In previous versions, controls were represented as CTRL files.

What are list type controls used for?

The List control type provides a way to organize a flat group or groups of items and allows a user to select one or more of those items. The List control type has a loose restriction on what types of child elements it may contain.

Is Java AWT still used?

Some AWT classes, not including components, are still commonly used, which is why you typically have to import from both java. awt and javax. swing . You will find programs that still use AWT, but they are either very old, or they are written to be the absolutely most portable, running on even the oldest systems.

Which of these methods is a part of AWT?

Explanation: drawString() method is defined in Graphics class, it is used to output a string in an applet. 3. Which of these methods is a part of Abstract Window Toolkit (AWT) ? Explanation: paint() is an abstract method defined in AWT.

Why AWT is heavyweight?

AWT components are considered heavy weight because they are being generated by underlying operating system (OS). For example if you are instantiating a text box in AWT that means you are actually asking OS to create a text box for you.

Which is better AWT or Swing?

Swing is the latest GUI toolkit, and provides a richer set of interface components than the AWT. … Swing components can be given their own “look and feel” Swing uses a more efficient event model than AWT; therefore, Swing components can run more quickly than their AWT counterparts.

What are controls or components?

A component is a class that implements the IComponent interface or that derives directly or indirectly from a class that implements IComponent. public class BaseComponent : IComponent {} A component does not draw itself on the form, but a control draws itself on the form or on another control.

What are the different types of control statements in Java?

In Java, the control statements are divided into three categories which are selection statements, iteration statements, and jump statements. A program can execute from top to bottom but if we use a control statement. We can set order for executing a program based on values and logic.

What is invokeLater in Java?

An invokeLater() method is a static method of the SwingUtilities class and it can be used to perform a task asynchronously in the AWT Event dispatcher thread. The SwingUtilities. invokeLater() method works like SwingUtilities. invokeAndWait() except that it puts the request on the event queue and returns immediately.

What is AWT?

The Abstract Window Toolkit (AWT) is Java’s original platform-dependent windowing, graphics, and user-interface widget toolkit, preceding Swing. The AWT is part of the Java Foundation Classes (JFC) — the standard API for providing a graphical user interface (GUI) for a Java program.

Does AWT follow MVC?

Swing components are lightweight. AWT doesn’t support pluggable look and feel. … AWT doesn’t follows MVC(Model View Controller) where model represents data, view represents presentation and controller acts as an interface between model and view.

What is meant by applet?

An applet is a Java program that runs in a Web browser. … A main() method is not invoked on an applet, and an applet class will not define main(). Applets are designed to be embedded within an HTML page. When a user views an HTML page that contains an applet, the code for the applet is downloaded to the user’s machine.