This document provides an introduction to Java Swing. It outlines the timeline for lectures on Swing topics. It emphasizes that a strong understanding of core Java concepts is required before learning Swing. It describes Swing as the Java Foundation Classes toolkit for building graphical user interfaces and distinguishes it from AWT. Finally, it previews that tomorrow's lecture will cover Swing components and containers in more detail.
Once upon a time in the C++ century, the Great King of Sun said people need Duke, The PDA (a medieval version of a tablet). He picked his bravest knights – Naughton, Sheriden and Gosling – and entrusted them a secret mission to travel the universe in search for a perfect language that Duke can use.
After three years of a dangerous journey in a world of bits, bytes and memory leakages, on an Asian isle they found it. Java made of Oak has been discovered.
When they returned the King was not in power anymore. New world was ruled by a mysterious organisation, World Wide Web. Our brave knights honoured it with the glorious Java. And the world became perfect…
Mani and Rafal will take your through an exciting story of great programmers, multi-billion company wars, and - most importantly – language features. The history of Java, from its inception till just about today.
The Diabolical Developer's Guide to Surviving Java 9jClarity
The Diabolical Developer presents a pragmatic guide on running and compiling your application on Java 9. There are a lot of new resrtictions due to the Java 9 modular runtime, so make sure you read through carefully before your migration!
Introduction to JAVA Programming
When Java?
Why Java?
How Java?
Where Java?
Architecture of java
Byte code of class file
Java class file to byte code class file.
Tools and Technology
Net-beans, Eclipse
Once upon a time in the C++ century, the Great King of Sun said people need Duke, The PDA (a medieval version of a tablet). He picked his bravest knights – Naughton, Sheriden and Gosling – and entrusted them a secret mission to travel the universe in search for a perfect language that Duke can use.
After three years of a dangerous journey in a world of bits, bytes and memory leakages, on an Asian isle they found it. Java made of Oak has been discovered.
When they returned the King was not in power anymore. New world was ruled by a mysterious organisation, World Wide Web. Our brave knights honoured it with the glorious Java. And the world became perfect…
Mani and Rafal will take your through an exciting story of great programmers, multi-billion company wars, and - most importantly – language features. The history of Java, from its inception till just about today.
The Diabolical Developer's Guide to Surviving Java 9jClarity
The Diabolical Developer presents a pragmatic guide on running and compiling your application on Java 9. There are a lot of new resrtictions due to the Java 9 modular runtime, so make sure you read through carefully before your migration!
Introduction to JAVA Programming
When Java?
Why Java?
How Java?
Where Java?
Architecture of java
Byte code of class file
Java class file to byte code class file.
Tools and Technology
Net-beans, Eclipse
Lecture 13 from the IAG0040 Java course in TTÜ.
See the accompanying source code written during the lectures: https://github.com/angryziber/java-course
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In presentation we consider - what bytecode is, how to manipulate it, how does it look like, how to read it and why would anyone needs to manipulate it.
We also develop a java agent that instrumentalizes access to MongoDB Java driver and expose that metrics via JMX.
JDK stand for java development kit.
JVM stands for Java Virtual Machine.
JRE is the responsible unit to run the java program.
JIT stands for Just In Time compiler.
Java Swing.ppt THIA GIVE YHR BASIC KNOWLEDGER ABOUT JAVAnikitaparmar61
Java Swing tutorial is a part of Java Foundation Classes (JFC) that is used to create window-based applications. It is built on the top of AWT (Abstract Windowing Toolkit) API and entirely written in java.
Unlike AWT, Java Swing provides platform-independent and lightweight components.
The javax.swing package provides classes for java swing API such as JButton, JTextField, JTextArea, JRadioButton, JCheckbox, JMenu, JColorChooser etc.
Difference between AWT and Swing
There are many differences between java awt and swing that are given below.
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No. Java AWT Java Swing
1) AWT components are platform-dependent. Java swing components are platform-independent.
2) AWT components are heavyweight. Swing components are lightweight.
3) AWT doesn't support pluggable look and feel. Swing supports pluggable look and feel.
4) AWT provides less components than Swing. Swing provides more powerful components such as tables, lists, scrollpanes, colorchooser, tabbedpane etc.
5) 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. Swing follows MVC.
What is JFC
The Java Foundation Classes (JFC) are a set of GUI components which simplify the development of desktop applications.
Do You Know
How to create runnable jar file in java?
How to display image on a button in swing?
How to change the component color by choosing a color from ColorChooser ?
How to display the digital watch in swing tutorial ?
How to create a notepad in swing?
How to create puzzle game and pic puzzle game in swing ?
How to create tic tac toe game in swing ?
Hierarchy of Java Swing classes
The hierarchy of java swing API is given below.
hierarchy of javax swing
Commonly used Methods of Component class
The methods of Component class are widely used in java swing that are given below.
Method Description
public void add(Component c) add a component on another component.
public void setSize(int width,int height) sets size of the component.
public void setLayout(LayoutManager m) sets the layout manager for the component.
public void setVisible(boolean b) sets the visibility of the component. It is by default false.
Java Swing Examples
There are two ways to create a frame:
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By creating the object of Frame class (association)
By extending Frame class (inheritance)
We can write the code of swing inside the main(), constructor or any other method.
Simple Java Swing Example
Let's see a simple swing example where we are creating one button and adding it on the JFrame object inside the main() method.
File: FirstSwingExample.java
import javax.swing.*;
public class FirstSwingExample {
public static void main(String[] args) {
JFrame f=new JFrame();//creating instance of JFrame
JButton b=new JButton("click");//creating instance of JButton
b.setBounds(130,100,100, 40);//x axis, y axis, width, height
Af.add(b);//adding button in JFR
Lecture 13 from the IAG0040 Java course in TTÜ.
See the accompanying source code written during the lectures: https://github.com/angryziber/java-course
Byte code manipulation and instrumentalization in JavaAlex Moskvin
In presentation we consider - what bytecode is, how to manipulate it, how does it look like, how to read it and why would anyone needs to manipulate it.
We also develop a java agent that instrumentalizes access to MongoDB Java driver and expose that metrics via JMX.
JDK stand for java development kit.
JVM stands for Java Virtual Machine.
JRE is the responsible unit to run the java program.
JIT stands for Just In Time compiler.
Java Swing.ppt THIA GIVE YHR BASIC KNOWLEDGER ABOUT JAVAnikitaparmar61
Java Swing tutorial is a part of Java Foundation Classes (JFC) that is used to create window-based applications. It is built on the top of AWT (Abstract Windowing Toolkit) API and entirely written in java.
Unlike AWT, Java Swing provides platform-independent and lightweight components.
The javax.swing package provides classes for java swing API such as JButton, JTextField, JTextArea, JRadioButton, JCheckbox, JMenu, JColorChooser etc.
Difference between AWT and Swing
There are many differences between java awt and swing that are given below.
ADVERTISEMENT
No. Java AWT Java Swing
1) AWT components are platform-dependent. Java swing components are platform-independent.
2) AWT components are heavyweight. Swing components are lightweight.
3) AWT doesn't support pluggable look and feel. Swing supports pluggable look and feel.
4) AWT provides less components than Swing. Swing provides more powerful components such as tables, lists, scrollpanes, colorchooser, tabbedpane etc.
5) 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. Swing follows MVC.
What is JFC
The Java Foundation Classes (JFC) are a set of GUI components which simplify the development of desktop applications.
Do You Know
How to create runnable jar file in java?
How to display image on a button in swing?
How to change the component color by choosing a color from ColorChooser ?
How to display the digital watch in swing tutorial ?
How to create a notepad in swing?
How to create puzzle game and pic puzzle game in swing ?
How to create tic tac toe game in swing ?
Hierarchy of Java Swing classes
The hierarchy of java swing API is given below.
hierarchy of javax swing
Commonly used Methods of Component class
The methods of Component class are widely used in java swing that are given below.
Method Description
public void add(Component c) add a component on another component.
public void setSize(int width,int height) sets size of the component.
public void setLayout(LayoutManager m) sets the layout manager for the component.
public void setVisible(boolean b) sets the visibility of the component. It is by default false.
Java Swing Examples
There are two ways to create a frame:
ADVERTISEMENT
ADVERTISEMENT
By creating the object of Frame class (association)
By extending Frame class (inheritance)
We can write the code of swing inside the main(), constructor or any other method.
Simple Java Swing Example
Let's see a simple swing example where we are creating one button and adding it on the JFrame object inside the main() method.
File: FirstSwingExample.java
import javax.swing.*;
public class FirstSwingExample {
public static void main(String[] args) {
JFrame f=new JFrame();//creating instance of JFrame
JButton b=new JButton("click");//creating instance of JButton
b.setBounds(130,100,100, 40);//x axis, y axis, width, height
Af.add(b);//adding button in JFR
Java in 2019 was predicted to be business as usual by many. We have seen new Java releases coming out as planned, AdoptOpenJDK became the main trustful source of binaries and Oracle fighting for the trademark again by preventing the use of javax as namespace. Everything looks like it would be a silent year for Java. But one thing seems obvious. Java's popularity is not gaining any more traction. New language features keep it up to date but people are getting more selective when it comes to implementation choices. Especially in the age of containers and cloud infrastructures. This talk walks you through the why and how of Java in containers. We will talk about image size and development and deployment processes.
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This talk is aimed at encouraging a more independent approach to using PHP frameworks, moving towards a more flexible and future-proof approach to PHP development.
State of ICS and IoT Cyber Threat Landscape Report 2024 previewPrayukth K V
The IoT and OT threat landscape report has been prepared by the Threat Research Team at Sectrio using data from Sectrio, cyber threat intelligence farming facilities spread across over 85 cities around the world. In addition, Sectrio also runs AI-based advanced threat and payload engagement facilities that serve as sinks to attract and engage sophisticated threat actors, and newer malware including new variants and latent threats that are at an earlier stage of development.
The latest edition of the OT/ICS and IoT security Threat Landscape Report 2024 also covers:
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Sectoral targets and attacks as well as the cost of ransom
Global APT activity, AI usage, actor and tactic profiles, and implications
Rise in volumes of AI-powered cyberattacks
Major cyber events in 2024
Malware and malicious payload trends
Cyberattack types and targets
Vulnerability exploit attempts on CVEs
Attacks on counties – USA
Expansion of bot farms – how, where, and why
In-depth analysis of the cyber threat landscape across North America, South America, Europe, APAC, and the Middle East
Why are attacks on smart factories rising?
Cyber risk predictions
Axis of attacks – Europe
Systemic attacks in the Middle East
Download the full report from here:
https://sectrio.com/resources/ot-threat-landscape-reports/sectrio-releases-ot-ics-and-iot-security-threat-landscape-report-2024/
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See how to accelerate model training and optimize model performance with active learning
Learn about the latest enhancements to out-of-the-box document processing – with little to no training required
Get an exclusive demo of the new family of UiPath LLMs – GenAI models specialized for processing different types of documents and messages
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👩🏫 Lenka Dulovicova, Product Program Manager, UiPath
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2. Heatmap utilization for testing
3. Optimization of testing processes
4. Demo
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Orchestrator execution result
Defect reporting
SAP heatmap example with demo
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Elizabeth Buie - Older adults: Are we really designing for our future selves?
Java lecture
1. Java Swing - Lecture 1
An Introduction
Milena Radenkovic
(mvr@cs.nott.ac.uk)
slides originally by Chris Coleman
2. 2
Timeline
• 26th
Oct (Now) - Java Necessaries, Swing Basics
• 27th
Oct - Components and Containers
• 3rd
Oct - Layout Management
• 9th
Nov - Event Handling and Listeners
• 10th
Nov - Graphics with Swing
• Java Labs TBA
3. 3
Before we Start… (1)
• Swing is all Java.
• You must know about, and understand:
Classes / Objects
Method Overloading
Inheritance
Polymorphism
Interfaces
How to read the Java2 API Documents
4. 4
Before We Start… (2)
• If Java is a problem – learn NOW, not later
when the coursework is due!
Labs
Come to the labs and help is there for both Java and
Swing.
Web
Use the Sun/Java tutorials
Plenty of web resources out there, even the PRG notes
Read a book?
6. 6
What is Swing?
• A part of The Java Foundation Classes
Swing
Look and feel
Accessibility
Java 2D (Java 2 onwards)
Drag and Drop
etc
• Can be used to build Standalone Apps as well
as Servlets and Applets
8. 8
Books
• Java Swing (1998), Robert Eckstein,
Mark Loy, Dave Wood, O'Reilly
• JFC Swing Tutorial, The: A Guide
to Constructing GUIs, 2nd Edition
(2004); K. Walrath and M. Campione,
Addison Wesley
9. 9
Getting started with Swing (1)
• Compiling & running programs
Swing is standard in Java 2 (JDK >= 1.2)
Use:
‘javac <program.java>’ && ‘java <program>’
Or JCreator / IDE
10. 10
Getting started with Swing (2)
• Computer Science Department Stuff…
PCs
Java 2 (1.5.0) on hard disk at csjava
Unix (tuck and much):
Java 2 (1.5.0) in /usr/bin (or /usr/java)
Differences between previous versions
http://java.sun.com/j2se/1.4.2/docs/guide/swing/SwingChanges.html
http://java.sun.com/j2se/1.5.0/docs/guide/swing/SwingChanges.html
Coursework marked on Win XP & JDK
1.5.0
11. 11
Getting started with Swing (3)
• Swing, like the rest of the Java API is
subdivided into packages:
javax.swing, javax.accessibility,
javax.swing.border …
• At the start of your code - always
import javax.swing;
import javax.swing.event;
• Most Swing programs also need
import java.awt.*;
import java.awt.event.*;
12. 12
Differences between Swing and
AWT (1)
• Never mix Swing and AWT components
• If you know AWT, put ‘J’ in front of
everything
AWT: Button
Swing: JButton
• Swing does all that AWT does, but better
and there’s much more of it.
13. 13
Differences between Swing and
AWT (2)
• Buttons and labels can display images
• Behaviour and appearance of components
• Component shape
• Borders
• Assistive technologies
• Look and feel of the program’s GUI
Windows – (but only on Windows, M$ issues….)
UNIX
GTK
etc
14. 14
A typical Swing program
• Consists of multiple parts
Containers
Components
Events
Graphics
(Threads)
• Now look at each in turn
16. 16
Remember this about
Containers:
• The structure of containers is your design
decision and should always be thought
through in advance
particularly for managing components
nesting containers
• Failure to do so usually either results in a
messy interface, messy code or both.
18. 18
Remember this about
Components:
• There are many components that make your job
much easier.
• Often, you will be able to customise an existing
Swing component to do a job for you, instead of
having to start from scratch
Eg can extend (inherit from) the JButton class and
‘paint’ a new button over the top
20. 20
Remember this about events:
• ‘Events’ as seen by GUIs do not happen
all that often in an application
• Consider what is happening between events
as well as during them
21. 21
A simple Swing program -
Graphics
• Graphics
• Complex drawing and
shading API.
• Can do far more than
display images.
22. 22
Remember this about
Graphics:
• There are many aspects of Swing that
allow you to achieve graphics-like things
without actually using ‘Graphics’.
• Therefore, you don’t have to use them
most of the time, and it is often easier not
to.
23. 23
A simple Swing program -
Threads
• Most simple Swing GUI applications don’t
require use of any (extra) threads
• As Swing creates event-driven programs,
all code is executed on the event-
dispatching thread
24. 24
Remember this about Threads:
The single-thread rule
“Once a Swing component has been realized,
all code that might affect or depend on the
state of that component should be executed in
the event-dispatching thread”
(with some exceptions)
25. 25
How to Learn Swing
• Don’t even try.
• Learn general framework principles and
design styles.
• Then use the API reference, and Swing
Tutorials to discover detailed usage of
each component.
26. 26
How to read Java Docs (1)
• Java 2 (J2SE 1.5.0) API Reference:
http://java.sun.com/j2se/1.5.0/docs/api/
• Split into 3 Sections (html frames):
Top Left: Packages
Bottom Left: Classes in Packages
Main Frame: Information about selected Class
27. 27
How to read Java Docs (2)
• General idea is find class, and examine main
frame for information.
• Main frame pages split into sections:
Package hierarchy & implemented interfaces
Class Description, and links to more info
Nested Class Summary – Detail in separate page
Fields - 2 types Class (static) and instance, plus fields
inherited from parent classes / interfaces
Constructor Summary
Method Summary & inherited methods from parents
Detailed info on all summary sections
28. 28
Summary
• Do you know enough Java?
• 2D interface programming toolkits
• JFC/Swing
• AWT and Swing
• Getting started with Swing
• Parts of a simple Swing program
• Tomorrow: Components and Containers
• Some source code, and design styles